Merge pull request #49 from layer5io/leecalcote-patch-1

Update README.md

Author: leecalcote

Diff for: README.md

@@ -1,5 +1,5 @@
 # Introduction to Istio
-A workshop teaching concepts of service mesh through the lens of Istio. Questions? See the community [discussion forum](http://discuss.layer5.io).
+A workshop teaching concepts of service mesh through the lens of Istio. Questions? See the community [discussion forum](https://discuss.layer5.io).
 
 [Free] Use the Cloud Native Playground to walk-through the labs in this workshop in a live Kubernetes environment - https://play.meshery.io