Update contribution document about how to use jfcm for local development

CONTRIBUTING.md

@@ -34,7 +34,49 @@ On Windows, run:
 .\build\build.bat
 ```
 
-After the build process completes, you will find the `jf` or `jf.exe` executable in the current directory.
+After the build process completes, you will find the `jf` (on Unix-based systems) or `jf.exe` (on Windows) executable in the current directory. 
+If you are unsure of the binary name, check the output of the build script or look for an executable named `jf` or `jfrog-cli` in the project root. Once the JFrog CLI  is built locally, use JFCM (JFrog CLI Manager) to test and manage it alongside released versions.
+
+## Testing and Managing Locally Built jfrog-cli with JFCM
+
+jfcm (JFrog CLI Manager) is a comprehensive tool for managing JFrog CLI on your development machine. Beyond version management, it provides features like jfrog-cli output comparison, command history, and performance benchmarking. It's particularly useful for contributors who need to test changes, compare behavior across versions, and analyze CLI performance.
+
+### Installing jfcm
+
+Download the latest jfcm binary for your platform from the [GitHub releases page](https://github.com/jfrog/jfrog-cli-manager/releases).
+
+For detailed installation instructions and usage examples, visit the [jfcm repository](https://github.com/jfrog/jfrog-cli-manager).
+
+### Benefits for Local Development
+
+jfcm is especially valuable for contributors because it allows you to:
+
+- **Test your local builds**: Link and use your locally built JFrog CLI binary
+- **Version isolation**: Keep development work separate from your production CLI usage
+- **Easy switching**: Quickly switch between your development version and stable releases
+- **Compare outputs**: Compare command outputs between different CLI versions
+- **Performance analysis**: Benchmark CLI commands to identify performance improvements or regressions
+- **Command history**: Track and review your CLI command history across sessions
+
+### Using Your Local Build
+
+After building JFrog CLI from source (as described above), you can register your local build with jfcm:
+
+```sh
+# Link your locally built binary
+# Link your locally built binary (replace './jf' with the actual binary name if different)
+jfcm link --from jf --name dev
+
+# Use your development version
+jfcm use dev
+
+# Switch back to a stable version when needed
+jfcm use latest
+```
+
+This workflow allows you to test your changes immediately and compare behavior between your development version and released versions.
+
+For complete documentation and more examples, please visit the [jfcm repository](https://github.com/jfrog/jfrog-cli-manager).
 
 ### Dependencies in other JFrog modules