docs(README): publish flow

Author: vmasek

README.md

@@ -1,3 +1,16 @@
 # contentful-rich-text-angular-renderer
 
 This repository hosts the `@flowup/contentful-rich-text-angular-renderer` library ([see README](./libs/contentful-rich-text-angular-renderer/README.md)).
+
+## Publish flow
+1. Update dependencies
+2. Check if demo app works correctly.
+3. Open `libs/contentful-rich-text-angular-renderer/package.json`
+    - Bump `version` of lib.
+    - Check all peer deps are correct
+4. Build lib with `nx run contentful-rich-text-angular-renderer:build:production`.
+5. Change working directory to newly generated dist `cd dist/libs/contentful-rich-text-angular-renderer`
+6. Check if all changes were correctly reflected.
+    - Versions of (peer) dependencies.
+    - Correct `version` of lib.
+7. Publish with `npm publish`