Merge pull request #113 from Bernardoow/adding_pre_commit

Added pre-commit  with just one hooks (flake8 to check line length).

Author: Riverfount

.pre-commit-config.yaml

@@ -0,0 +1,7 @@
+repos:
+  - repo: https://gitlab.com/pycqa/flake8
+    rev: 3.7.9
+    hooks:
+      - id: flake8
+        args: ['--select=E501']
+        language_version: python3

README.md

@@ -27,6 +27,7 @@ cd Flask-GoogleMaps
 poetry use env 3.8  # just to create virtualenv at the first time
 poetry shell # activate virtualenv
 poetry install  # to install all for dev
+pre-commit install # to install pre-commit hooks
 ```
 
 ## Installation