Add release process documentation to RELEASE.md (#49)

Author: shubhamkd

RELEASE.md

@@ -0,0 +1,36 @@
+## Release Process
+
+Follow these steps when releasing the Nightwatch Browserstack plugin:
+
+1. **Merge the corresponding pull request (PR)** using squash and merge.
+2. **Clone a fresh copy of the repository locally** to avoid publishing uncommitted files.
+3. Run `npm install` (or `npm i`) to install dependencies.
+4. Run `npm audit fix` to automatically resolve fixable vulnerabilities.  
+   _Note: This only changes `package-lock.json`. It is safer than using `--force`, which may change package versions unexpectedly._
+5. **Commit and push** any changes resulting from `npm audit fix`.
+6. **Bump the version** in `package.json` (e.g., `3.6.2` → `3.7.0` for a minor bump).
+7. Run `npm install` again to update `package-lock.json` after the version bump.
+8. **Stage and commit** the version bump changes.  
+   _Release commit names should match the version number, e.g., `3.7.0`._
+9. Add a tag:  
+   ```sh
+   git tag v3.7.0
+   ```
+10. Push commits **and tags**:  
+    ```sh
+    git push origin main --tags
+    ```
+11. **Login to npm (if not already authenticated):**  
+    ```sh
+    npm login
+    ```
+    _Requires an npm account._
+12. **Publish the package to npm:**  
+    ```sh
+    npm publish
+    ```
+    _Requires an npm account with permission for this package (typically by joining the Nightwatch organization on npm). For accounts with 2FA, a mobile verification code will be requested._
+13. **Create a release on GitHub:**  
+    - Select the new tag.
+    - Generate release notes.
+    - Publish the release.