Adding yamllint hook to catch common yaml syntax errors.

Author: CreatingNull

.pre-commit-config.yaml

@@ -19,6 +19,13 @@ repos:
     -   id: check-executables-have-shebangs
     -   id: check-shebang-scripts-are-executable
 
+# Check for common yaml errors
+-   repo: https://github.com/adrienverge/yamllint.git
+    rev: v1.33.0
+    hooks:
+    -   id: yamllint
+        args: [--no-warnings, -d, "{extends: relaxed, rules: {new-lines: disable}}"]
+
 # Format markdown docs.
 -   repo: https://github.com/executablebooks/mdformat
     # Do this before other tools "fixing" the line endings