docs(README.md): Add pre-commit integration information in README.md

Author: alecgerona

docs/README.md

@@ -74,6 +74,20 @@ or the shortcut
 cz c
 ```
 
+### Integrating with Pre-commit
+Commitizen can lint your commit message for you with `cz check`.
+You can integrate this in your [pre-commit](https://pre-commit.com/) config with:
+```yaml
+---
+repos:
+  - repo: https://github.com/commitizen-tools/commitizen
+    rev: v1.17.0
+    hooks:
+      - id: commitizen
+        stages: [commit-msg]
+```
+Read more about the `check` command [here](https://commitizen-tools.github.io/commitizen/check/).
+
 ### Help
 
 ```bash