Add basic pre-commit config

.pre-commit-config.yaml

+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.2.0
+    hooks:
+    -   id: trailing-whitespace
+    -   id: end-of-file-fixer
+    -   id: check-yaml
+    -   id: check-added-large-files
+    -   id: detect-private-key
+    -   id: fix-encoding-pragma
+    -   id: mixed-line-ending
+
+- repo: https://github.com/ansible/ansible-lint.git
+  rev: v4.3.5
+  hooks:
+    - id: ansible-lint
+      files: \.(yaml|yml)$
+- repo: https://github.com/markdownlint/markdownlint
+  rev: v0.11.0
+  hooks:
+    - id: markdownlint