add usage instruction for when I get back to this

README.md

@@ -33,3 +33,25 @@ i.e. replace redis with an event driven approach
 - [x] create event store
 - [x] make events
 - [x] implement event store
+
+## Usage tips
+
+### Running the app locally
+
+Install *air* from [cosmtrek/air github repo](https://github.com/cosmtrek/air) with `go install github.com/cosmtrek/air@latest` or use the provided install bash scripts. This tool will watch for changes in the project folder and rebuild and restart the app during development (at least most of the time)
+
+then in the root folder:
+
+    air
+
+and check for errors. Normally the site will now answer on  [port 8080.](http://localhost:8080)
+
+### Updating CSS with tailwind
+
+Just add tailwind tags to the *class* attributes per documentation 
+
+then in the root folder:
+
+    npx tailwindcss -i ./src/input.css -o ./static/output.css --watch
+    
+Same deal, it will monitor changes in the templates and regenerate the output.css on the fly.