Fixed indentation of github actions yaml

Author: seanlaw

.github/workflows/github-actions.yml

@@ -3,15 +3,15 @@ on: [push, pull_request]
 jobs:
   unit-testing:
     runs-on: ${{ matrix.os }}
-      strategy:
-        matrix:
-          os: [ubuntu-latest, macos-latest, windows-latest]
-          python-version: [3.6', '3.7', '3.8']
-      steps:
-        - uses: actions/checkout@v2
-        - name: Set up Python
-          uses: actions/setup-python@v2
-          with:
-            python-version: ${{ matrix.python-version }}
-        - name: Display Python version
-          run: python -c "import sys; print(sys.version)"
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: [3.6', '3.7', '3.8']
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Display Python version
+        run: python -c "import sys; print(sys.version)"