doc(README): Add Development section

CHANGELOG.md

@@ -6,6 +6,7 @@ for the list of changes in SaltStack.
 
 **3005.1_2**
 
+- Add _Development_ section to [README.md](README.md).
 - CI(tests): Install `salt-minion` for integration tests.
 - CI(tests): Improve log support.
 - CI(tests): Always run tests.

README.md

@@ -691,7 +691,16 @@ You can restart containers services by running the following command:
 docker exec -it salt_master entrypoint.sh app:restart [salt-service]
 ```
 
-Where `salt-service` is one of: `salt-master` os `salt-api` (if `SALT_API_SERVICE_ENABLED` is set to `True`)
+Where `salt-service` is one of: `salt-master` os `salt-api` (if `SALT_API_SERVICE_ENABLED` is set to `True`).
+
+## 🔨 Development
+
+Everyone is wellcome to contribute to this project, and I really appreciate your support. So don't be shy!
+
+Before you start making changes, read carefully the following notes in order to avoid issues.
+
+- ⚠️ Some tests start and stop a _**non-isolated**_ `salt-minion` instance. So don't run tests locally.
+  Tests are automatically executed on GitHub when you push commits to your PR.
 
 ## 👏 Credits