Add pre-commit workflow

.github/workflows/lint-docs.yml

@@ -0,0 +1,27 @@
+name: Lint docs
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+jobs:
+  check_md:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout preCICE
+        uses: actions/checkout@v4
+      - name: Setup python
+        uses: actions/setup-python@v5
+        with:
+         python-version: '3.10'
+         check-latest: true
+      - name: Install pre-commit
+        run: pip install pre-commit
+      - name: Run checks
+        run: pre-commit run -a -v
+      - name: Git status
+        if: always()
+        run: git status
+      - name: Full diff
+        if: always()
+        run: git diff

README.md

@@ -5,11 +5,13 @@
 The website is using [Jekyll](https://jekyllrb.com/) static website generator and [Github pages](https://pages.github.com/).
 To run and develop it locally you would need [Ruby](https://www.ruby-lang.org/en/) and [Bundler](https://bundler.io/).
 With Ruby, you can install bundler using `gem install bundler`.
+Then install [`pre-commit`](https://repology.org/project/python:pre-commit/versions) to keep your commits clean.
 
 After that all you need is:
 
 ```bash
 git clone https://github.com/precice/precice.github.io && cd precice.github.io
+pre-commit install
 bundle install
 git submodule init
 git submodule update