add link to show and tell discussion

Author: bobheadxi

README.md

@@ -53,7 +53,9 @@ You can also refer to other projects that also use this action - you can find [m
 - [`sharetribe/sharetribe`](https://sourcegraph.com/search?q=context:global+repo:%5Egithub%5C.com/sharetribe/sharetribe%24+file:%5E%5C.github/workflows+bobheadxi/deployments&patternType=literal) [![GitHub Repo stars](https://img.shields.io/github/stars/sharetribe/sharetribe?style=social)](https://github.com/sharetribe/sharetribe) - marketplace software
 - [`skylines-project/skylines`](https://sourcegraph.com/search?q=repo:%5Egithub%5C.com/skylines-project/skylines%24+bobheadxi/deployments\&patternType=literal) [![GitHub Repo stars](https://img.shields.io/github/stars/skylines-project/skylines?style=social)](https://github.com/skylines-project/skylines) - live tracking, flight database and competition web platform
 
-See [this blog post](https://dev.to/bobheadxi/branch-previews-with-google-app-engine-and-github-actions-3pco) for a bit of background on the origins of this action.
+Also feel free to chime in on the [show and tell discussion](https://github.com/bobheadxi/deployments/discussions/84) to share your usages of this Action!
+
+Check out [this blog post](https://dev.to/bobheadxi/branch-previews-with-google-app-engine-and-github-actions-3pco) for a bit of background on the origins of this project.
 
 ## Configuration