Exclude markdown from trailing-whitespce hook

Author: staticintlucas

.pre-commit-config.yaml

@@ -9,6 +9,7 @@ repos:
   - id: mixed-line-ending
     args: [--fix=lf]
   - id: trailing-whitespace
+    exclude: \.md$
 - repo: local
   hooks:
   - id: cargo-clippy