update CONTRIBUTING.md

{{ cookiecutter.package_name }}/CONTRIBUTING.md

-[//]: # (For a guide to create CONTRIBUTING.md, see http://mozillascience.github.io/working-open-workshop/contributing/)
 # Who is concerned by this file
 
+[//]: # (For a guide to create CONTRIBUTING.md, see http://mozillascience.github.io/working-open-workshop/contributing/)
+
 This file is for:
 
 - Project owners - creators and maintainers of the project
@@ -40,7 +41,7 @@ This will run the following hooks:
 pytest
 ```
 
-# Generating distribution archives
+## Generating distribution archives
 
 ```bash
 pip install --upgrade pip
@@ -48,7 +49,7 @@ pip install --upgrade build
 python -m build
 ```
 
-# Pypi share
+## Pypi share
 
 ```bash
 pip install --upgrade pip
@@ -57,9 +58,3 @@ python -m twine upload --repository pypi dist/*
 ```
 
 You will be prompted for a username and password. For the username, use __token__. For the password, use the token value, including the pypi- prefix.
-
-# Gitlab CI configuration for automatic requirements.txt update
-
-1. Add an access token ("Gitlab CI" is a good name) with write permissions to the project's repository.
-2. Add a `Settings>CI/CD>Variables` named `PROJECT_ACCESS_TOKEN` with the value of the access token,
-   1. You may want to use all three options: `Protected`, `Masked`, `Expanded`.

{{ cookiecutter.package_name }}/pyproject.toml

@@ -87,4 +87,8 @@ legacy_tox_ini = """
     [testenv:mypy]
     deps = mypy
     commands = mypy src
-"""
\ No newline at end of file
+"""
+
+[tool.pymarkdown]
+strict-config = true
+plugins.line-length.line_length = 88