docs(readme): update features list

Author: kucingkode

README.md

@@ -5,7 +5,20 @@ Custom features for dev containers used in development of Omoxyz software projec
 ## Features
 
 - **Lefthook** (`lefthook`) – fast polyglot Git hooks manager to automate code checks, formatting, and tests before commits and pushes.
+- **Air** (`go-air`) - live reloader for Go apps
 
 ## Usage
 
-*Please refer to `README.md` file of the feature you want to use located in `src/{feature-id}` folder.*
+*Please refer to `README.md` file of the feature you want to use located in `src/{feature-id}` folder.*
+
+## Development
+
+1. Open this project in Container
+2. Install git hooks
+    ```bash
+    npm install
+    ```
+3. To test all features, launch `Test All Features`
+4. To test specific features, launch `Test Features (input)` and input a list of features you want to test separated by spaces.
+5. To run global test, launch `Test Global`.
+6. Use [commit conventions](https://www.conventionalcommits.org/en/v1.0.0/) for commit messages.