update README.md

readme.md

@@ -8,6 +8,30 @@ This repository leverages PostgreSQL as a caching layer to reduce DevHub's RPC c
 cargo watch -q -c -w src/ -x 'run '
 ```
 
+### SQLx Postgres
+---
+[More information](https://github.com/launchbadge/sqlx/tree/main/sqlx-cli)
+
+### Create and run migrations
+
+```bash
+sqlx migrate add <name>
+```
+
+Creates a new file in `migrations/<timestamp>-<name>.sql`. Add your database schema changes to
+this new file.
+
+---
+
+```bash
+sqlx migrate run
+```
+
+Compares the migration history of the running database against the `migrations/` folder and runs
+any scripts that are still pending.
+
+---
+
 ## Rust + Rocket + Fly.io
 
 ```sh