diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..042cc28
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,11 @@
+# Contributing
+
+Feel free to contribute to this project by submitting a pull request to the `main` branch.
+
+## Testing
+
+To run the tests, run the following command:
+
+```bash
+./lib/bashunit ./tests/
+```
diff --git a/README.md b/README.md
index 5b59f6e..a8f4e11 100644
--- a/README.md
+++ b/README.md
@@ -104,3 +104,7 @@ Xdebug
 </details>
 
 You can always use your custom image with the `PHPCTL_IMAGE` variable, but feel free to ask for more essential extensions in the issues.
+
+## Contributing
+
+Click here to read the [contributing guidelines](CONTRIBUTING.md).