Update

.pre-commit-config.yaml

@@ -10,14 +10,20 @@
     -   id: check-symlinks
     -   id: detect-private-key
     -   id: end-of-file-fixer
+        files: \.md$
     -   id: trailing-whitespace
+        files: \.md$
 -   repo: git://github.com/Lucas-C/pre-commit-hooks
     sha: v1.0.1
     hooks:
     -   id: forbid-crlf
+        files: \.md$
     -   id: remove-crlf
+        files: \.md$
     -   id: forbid-tabs
+        files: \.md$
     -   id: remove-tabs
+        files: \.md$
 - repo: local
   hooks:
     -  id: convert-markdown-into-html