- Added pre-commit.

.pre-commit-config.yaml

+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    sha: 6dfcb89af3c9b4d172cc2e5a8a2fa0f54615a338
+    hooks:
+    -   id: check-added-large-files
+    -   id: check-json
+    -   id: check-xml
+    -   id: check-yaml
+    -   id: check-merge-conflict
+-   repo: https://www.shore.co.il/git/ansible-pre-commit/
+    sha: 94b506c144d4e22ebc1deef637a818db13bcaca5
+    hooks:
+    -   id: ansible-pre-commit
+        files: (pkgs|dropbox|skype|desktop)\.yml$