eventonica-react: help cohort add express routes to use in their create-react-app project

[alodahl]

eventonica-react: get the cohort started with express in their create-react-app project

Please add more steps after line 124 to help participants create users/delete and users/add routes to their express app. project: https://github.com/Techtonica/curriculum/blob/main/projects/eventonica-react/eventonica-express-backend.md

Feel free to proofread existing content as well.

Adding a Postgres API will be the next outline after this. We need help with that one too! https://github.com/Techtonica/curriculum/blob/main/projects/eventonica-react/eventonica-postgres.md

Add or change the starter code in projects/eventonica-react/starter-code if necessary.
Here's an example Express project for your reference. This is for contributors, not curriculum users! https://github.com/alodahl/eventonica-api.

See #1608 for more context and a React app example.

[priyaraj7]

I updated the eventonica-express-backend doc. So closing the issue