Spectrogram 1.4.1

use new readme format in NuGet description

Author: swharden

src/Spectrogram/Spectrogram.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <Version>1.4.0</Version>
+    <Version>1.4.1</Version>
     <Description>A .NET Standard library for creating spectrograms</Description>
     <Authors>Scott Harden</Authors>
     <Company>Harden Technologies, LLC</Company>
@@ -14,6 +14,7 @@
     <PackageReleaseNotes>https://github.com/swharden/Spectrogram/releases</PackageReleaseNotes>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <IncludeSymbols>true</IncludeSymbols>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
   </PropertyGroup>
 
   <ItemGroup>