Fix typos and trailing whitespace

Author: priteau

.github/workflows/pull-request.yml

@@ -14,7 +14,7 @@ jobs:
               python-version: 3.8
       name: Tox ${{ matrix.environment }} with Python ${{ matrix.python-version }}
       steps:
-        - name: Github Checkout 🛎u
+        - name: GitHub Checkout 🛎
           uses: actions/checkout@v3
           with:
             fetch-depth: 0
@@ -23,6 +23,6 @@ jobs:
           with:
             python-version: ${{ matrix.python-version }}
         - name: Install Tox 📦
-          run: pip install tox 
+          run: pip install tox
         - name: Run Tox ${{ matrix.environment }} 🧪
-          run: tox -e ${{ matrix.environment }} 
+          run: tox -e ${{ matrix.environment }}