docs: update readme (#1558)

README.md

@@ -16,7 +16,7 @@ that goal. See [`HOWTO_migrate-from-moveon-main.md`](./docs/HOWTO_migrate-from-m
 
 Prerequisites:
 
-- Node (>= 16.14) -- See [How to Install Node](https://nodejs.dev/learn/how-to-install-nodejs)
+- Node (^16.14) -- See [How to Install Node](https://nodejs.dev/learn/how-to-install-nodejs)
 - Yarn (>= 1.19.1) -- See [Installing Yarn](https://classic.yarnpkg.com/en/docs/install)
 - Postgres (>= 11) -- See [install](https://postgresql.org/download) and [start](https://www.postgresql.org/docs/current/server-start.html) documentation
 
@@ -47,13 +47,19 @@ Create the `spokedev` database (if it doesn't yet exist)
 psql -c "create database spokedev;"
 ```
 
-Run the migrations
+Run the migrations:
 
 ```sh
 yarn migrate:worker
 yarn knex migrate:latest
 ```
 
+Run codegen:
+
+```sh
+yarn codegen
+```
+
 Run in development mode:
 
 ```sh