docs: added conventional commit docs

CONTRIBUTING.md

@@ -74,7 +74,7 @@ Here is a quick tip to squash all commits for a branch named `test`:
 git checkout test
 git reset $(git merge-base master $(git rev-parse --abbrev-ref HEAD))
 git add -A
-git commit -m \"feat: example conventional commit\"
+git commit -m "feat: example conventional commit"
 git push --force
 ```