Add .pre-commit-config.yaml

Via https://github.com/jazzband/django-payments/blob/c380e6a/.pre-commit-config.yaml

License: BSD-3, fellow jazzband project

.pre-commit-config.yaml

@@ -0,0 +1,29 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+# vim: set nospell:
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.1.0
+    hooks:
+      - id: trailing-whitespace
+        args: [--markdown-linebreak-ext=md]
+      - id: end-of-file-fixer
+      - id: check-toml
+      - id: check-added-large-files
+      - id: debug-statements
+  - repo: https://github.com/pycqa/isort
+    rev: 5.10.1
+    hooks:
+      - id: isort
+  - repo: https://github.com/PyCQA/flake8
+    rev: "4.0.1"
+    hooks:
+      - id: flake8
+        additional_dependencies:
+          - flake8-comprehensions
+          - flake8-bugbear
+        exclude: docs\/.*
+  - repo: https://github.com/psf/black
+    rev: "21.12b0"
+    hooks:
+      - id: black