chore: update Kotlin branding (#4121)

* chore: update the Kotlin and JetBrains info

* chore: update the faq.md

Author: koshachy

docs/topics/contribute.md

@@ -1,55 +1,58 @@
 [//]: # (title: Contribution)
 
-Kotlin is an open-source project under the [Apache 2.0 License](https://github.com/JetBrains/kotlin/blob/master/license/LICENSE.txt). The source code, tooling, documentation, and even this web site are maintained on [GitHub](https://github.com/jetbrains/kotlin). 
-While Kotlin is mostly developed by JetBrains, there are hundreds of external contributors to the Kotlin project and we are always on the lookout for more people to help us.
+Kotlin is an open-source project under the [Apache 2.0 License](https://github.com/JetBrains/kotlin/blob/master/license/LICENSE.txt).
+The source code, tooling, documentation, and even this website are maintained on [GitHub](https://github.com/jetbrains/kotlin). 
+Kotlin is developed by JetBrains, but we are always on the lookout for more people to help us.
 
 ## Participate in Early Access Preview
 
 You can help us improve Kotlin by [participating in Kotlin Early Access Preview (EAP)](eap.md) and providing us with your valuable feedback.
 
-For every release, Kotlin ships a few preview builds where you can try out the latest features before they go to production. You can report any bugs you find to our issue tracker [YouTrack](https://kotl.in/issue) 
+For every release, Kotlin ships a few preview builds where you can try out the latest features before they go to production.
+You can report any bugs you find to our issue tracker [YouTrack](https://kotl.in/issue) 
 and we will try to fix them before a final release. This way, you can get bug fixes earlier than the standard Kotlin release cycle.
 
 ## Contribute to the compiler and standard library
 
-If you want to contribute to the Kotlin compiler and standard library, go to [JetBrains/Kotlin GitHub](https://github.com/jetbrains/kotlin), check out the latest Kotlin version,
- and follow [the instructions on how to contribute](https://github.com/JetBrains/kotlin/blob/master/docs/contributing.md).
+If you want to contribute to the Kotlin compiler and standard library, go to [JetBrains/Kotlin GitHub](https://github.com/jetbrains/kotlin), 
+check out the latest Kotlin version, and follow [the instructions on how to contribute](https://github.com/JetBrains/kotlin/blob/master/docs/contributing.md).
 
 You can help us by completing [open tasks](https://youtrack.jetbrains.com/issues/KT?q=tag:%20%7BUp%20For%20Grabs%7D%20and%20State:%20Open). 
-Please keep an open line of communication with us because we may have questions and comments on your changes. Otherwise, we won't be able to incorporate your contributions.
+Please keep an open line of communication with us because we may have questions and comments on your changes. 
+Otherwise, we won't be able to incorporate your contributions.
 
 ## Contribute to the Kotlin IDE plugin
 
 Kotlin IDE plugin is a part of the [IntelliJ IDEA repository](https://github.com/JetBrains/intellij-community/tree/master/plugins/kotlin).
 
-To contribute to the Kotlin IDE plugin, clone the [IntelliJ IDEA repository](https://github.com/JetBrains/intellij-community/) and follow the [instructions on how to contribute](https://github.com/JetBrains/intellij-community/blob/master/plugins/kotlin/CONTRIBUTING.md).
+To contribute to the Kotlin IDE plugin, clone the [IntelliJ IDEA repository](https://github.com/JetBrains/intellij-community/) 
+and follow the [instructions on how to contribute](https://github.com/JetBrains/intellij-community/blob/master/plugins/kotlin/CONTRIBUTING.md).
 
 ## Contribute to other Kotlin libraries and tools
 
 Besides the standard library that provides core capabilities, Kotlin has a number of additional (kotlinx) libraries that extend its functionality. 
 Each kotlinx library is developed in a separate repository, has its own versioning and release cycle.
 
 If you want to contribute to a kotlinx library (such as [kotlinx.coroutines](https://github.com/Kotlin/kotlinx.coroutines) or
-[kotlinx.serialization](https://github.com/Kotlin/kotlinx.serialization)) and tools, go to [Kotlin GitHub](https://github.com/Kotlin), choose the repository you are interested in and clone it.
+[kotlinx.serialization](https://github.com/Kotlin/kotlinx.serialization)) and tools, go to [Kotlin GitHub](https://github.com/Kotlin), 
+choose the repository you are interested in and clone it.
 
 Follow the contribution process described for each library and tool, such as
-[kotlinx.serialization](https://github.com/Kotlin/kotlinx.serialization/blob/master/CONTRIBUTING.md), [ktor](https://github.com/ktorio/ktor/blob/master/CONTRIBUTING.md) and others.
+[kotlinx.serialization](https://github.com/Kotlin/kotlinx.serialization/blob/master/CONTRIBUTING.md),
+[ktor](https://github.com/ktorio/ktor/blob/master/CONTRIBUTING.md) and others.
 
 If you have a library that could be useful to other Kotlin developers, let us know via <feedback@kotlinlang.org>.
 
 ## Contribute to the documentation
 
 If you've found an issue in the Kotlin documentation, 
 feel free to check out [the documentation source code on GitHub](https://github.com/JetBrains/kotlin-web-site/tree/master/docs/topics)
-and send us a pull request. Follow [these guidelines on style and formatting](https://docs.google.com/document/d/1mUuxK4xwzs3jtDGoJ5_zwYLaSEl13g_SuhODdFuh2Dc/edit?usp=sharing).
+and send us a pull request.
+Follow [these guidelines on style and formatting](https://docs.google.com/document/d/1mUuxK4xwzs3jtDGoJ5_zwYLaSEl13g_SuhODdFuh2Dc/edit?usp=sharing).
 
 Please keep an open line of communication with us because we may have questions and comments on your changes. 
 Otherwise, we won't be able to incorporate your contributions.
 
-## Create tutorials or videos
-
-If you've created tutorials or videos for Kotlin, please share them with us via <feedback@kotlinlang.org>. 
-
 ## Translate documentation to other languages
 
 You are welcome to translate the Kotlin documentation into your own language and publish the translation on your website.
@@ -60,4 +63,5 @@ is correct and up to date. Unfortunately, we won't be able to review documentati
 
 ## Hold events and presentations
 
-If you've given or just plan to give presentations or hold events on Kotlin, please fill out [the form](https://surveys.jetbrains.com/s3/Submit-a-Kotlin-Talk). We'll feature them on [the event list](https://kotlinlang.org/docs/events.html).
+If you've given or just plan to give presentations or hold events on Kotlin, please fill out [the form](https://surveys.jetbrains.com/s3/Submit-a-Kotlin-Talk).
+We'll feature them on [the event list](https://kotlinlang.org/docs/events.html).

docs/topics/faq.md

@@ -1,4 +1,5 @@
 [//]: # (title: FAQ)
+[//]: # (description: Kotlin is a concise multiplatform programming language developed by JetBrains.)
 
 ### What is Kotlin?
 
@@ -13,34 +14,35 @@ You can find more information [on GitHub](https://github.com/jetbrains/kotlin).
 
 ### Is Kotlin free?
 
-Yes. Kotlin is free, has been free and will remain free. It is developed under the Apache 2.0 license and the source code
+Yes. Kotlin is free, has been free and will remain free. It is developed under the Apache 2.0 license, and the source code
 is available [on GitHub](https://github.com/jetbrains/kotlin).
 
 ### Is Kotlin an object-oriented language or a functional one?
 
 Kotlin has both object-oriented and functional constructs. You can use it in both OO and FP styles, or mix elements of the two. 
-With first-class support for features such as higher-order functions, function types and lambdas, Kotlin is a great choice
+With first-class support for features such as higher-order functions, function types, and lambdas, Kotlin is a great choice
 if you're doing or exploring functional programming.
 
 ### What advantages does Kotlin give me over the Java programming language?
 
 Kotlin is more concise. Rough estimates indicate approximately a 40% cut in the number of lines of code. 
-It's also more type-safe, for example, support for non-nullable types makes applications less prone to NPE's. 
-Other features including smart casting, higher-order functions, extension functions and lambdas with receivers provide 
+It's also more type-safe – for example, support for non-nullable types makes applications less prone to NPE's. 
+Other features including smart casting, higher-order functions, extension functions, and lambdas with receivers provide 
 the ability to write expressive code as well as facilitating creation of DSL.
 
 ### Is Kotlin compatible with the Java programming language?
 
-Yes. Kotlin is 100% interoperable with the Java programming language and major emphasis has been placed on making sure
+Yes. Kotlin is 100% interoperable with the Java programming language, and major emphasis has been placed on making sure
 that your existing codebase can interact properly with Kotlin. You can easily [call Kotlin code from Java](java-to-kotlin-interop.md) and [Java code
 from Kotlin](java-interop.md). This makes adoption much easier and lower-risk. There's also an automated [Java-to-Kotlin converter built
 into the IDE](mixing-java-kotlin-intellij.md#converting-an-existing-java-file-to-kotlin-with-j2k) that simplifies migration of existing code.
 
 ### What can I use Kotlin for?
 
-Kotlin can be used for any kind of development, be it server-side, client-side web, Android. With Kotlin/Native currently 
-in the works, support for other platforms such as embedded systems, macOS and iOS is coming. People are using Kotlin for mobile 
-and server-side applications, client-side with JavaScript or JavaFX, and data science, just to name a few possibilities.
+Kotlin can be used for any kind of development, be it server-side, client-side web, Android, or multiplatform library.
+With Kotlin/Native currently in the works, support for other platforms such as embedded systems, macOS, and iOS.
+People are using Kotlin for mobile and server-side applications, client-side with JavaScript or JavaFX, and data science,
+just to name a few possibilities.
 
 ### Can I use Kotlin for Android development?
 
@@ -49,8 +51,8 @@ for Android, such as Basecamp, Pinterest and more. For more information, check o
 
 ### Can I use Kotlin for server-side development?
 
-Yes. Kotlin is 100% compatible with the JVM and as such you can use any existing frameworks such as Spring Boot, 
-vert.x or JSF. In addition, there are specific frameworks written in Kotlin such as [Ktor](https://github.com/kotlin/ktor). 
+Yes. Kotlin is 100% compatible with the JVM, and as such you can use any existing frameworks such as Spring Boot, 
+vert.x or JSF. In addition, there are specific frameworks written in Kotlin, such as [Ktor](https://github.com/kotlin/ktor). 
 For more information, check out [the resource on server-side development](server-overview.md).
 
 ### Can I use Kotlin for web development?
@@ -120,13 +122,13 @@ Kotlin, be this via blog posts, GitHub repositories or talks include
 
 ### Who develops Kotlin?
 
-Kotlin is primarily developed by a team of engineers at [JetBrains (current team size is 100+)](https://www.jetbrains.com/).
+Kotlin is developed by a team of engineers at [JetBrains (current team size is 100+)](https://www.jetbrains.com/).
 The lead language designer is Michail Zarečenskij. In addition to the core team, there are also over 250 external contributors on GitHub. 
 
 ### Where can I learn more about Kotlin?
 
-The best place to start is [our website](https://kotlinlang.org). From there you can [download the compiler](command-line.md), 
-[try it online](https://play.kotlinlang.org) as well as get access to resources. 
+The best place to start is [our website](https://kotlinlang.org). 
+To start with Kotlin, you can install one of the [official IDEs](kotlin-ide.md) or [try it online](https://play.kotlinlang.org).
 
 ### Are there any books on Kotlin?
 
@@ -182,4 +184,4 @@ a [newsletter](http://kotlinweekly.net), a [podcast](https://talkingkotlin.com)
 Logos can be downloaded [here](https://resources.jetbrains.com/storage/products/kotlin/docs/kotlin_logos.zip).
 When using the logos, please follow simple rules in the `guidelines.pdf` inside the archive and [Kotlin brand usage guidelines](https://kotlinfoundation.org/guidelines/).
 
-For more information, check out the page about [Kotlin brand assets](kotlin-brand-assets.md).
+For more information, check out the page about [Kotlin brand assets](kotlin-brand-assets.md).

docs/topics/roadmap.md

@@ -11,7 +11,7 @@
     </tr>
 </table>
 
-Welcome to the Kotlin roadmap! Get a sneak peek into the priorities of the Kotlin Team.
+Welcome to the Kotlin roadmap! Get a sneak peek into the priorities of the JetBrains Team.
 
 ## Key priorities