Updated files with repo_helper.

Author: domdfcoding

.pre-commit-config.yaml

@@ -28,3 +28,19 @@ repos:
     rev: v1.5.1
     hooks:
     -   id: pyupgrade
+        args: [--py36-plus]
+
+-   repo: https://github.com/asottile/add-trailing-comma
+    rev: v2.0.1
+    hooks:
+    -   id: add-trailing-comma
+
+-   repo: https://gitlab.com/pycqa/flake8
+    rev: 3.8.2
+    hooks:
+    -   id: flake8
+
+-   repo: https://github.com/pycqa/bandit
+    rev: 1.6.2
+    hooks:
+    -   id: bandit