add production deployment documentation

README.md

@@ -55,7 +55,9 @@ More bi solutions coming soon.
 
 ## Production Deployments
 
-TODO
+The [production deployments document](docs/PRODUCTION_DEPLOYMENTS.md) explains how to deploy the rails app to Heroku.
+
+More platforms coming soon.
 
 ## Contributing
 

docs/PRODUCTION_DEPLOYMENTS.md

@@ -0,0 +1,19 @@
+# Production Deployments
+
+## Heroku
+
+The project is deployable to Heroku out of the box.
+
+Fork the repository:
+- https://docs.github.com/en/get-started/quickstart/fork-a-repo#forking-a-repository
+
+Follow the instructions for deploying to Heroku through the Github integration:
+- https://devcenter.heroku.com/articles/github-integration
+
+Heroku Dashboard offers the option for manual deploys through a user interface:
+- https://devcenter.heroku.com/articles/heroku-dashboard
+
+More information on how to deploy Ruby on Rails apps to Heroku can be found here:
+- https://devcenter.heroku.com/articles/getting-started-with-rails7
+- https://devcenter.heroku.com/articles/deploying-rails-applications-with-the-puma-web-server
+- https://devcenter.heroku.com/articles/preparing-a-codebase-for-heroku-deployment