actually checkout the repo

.github/workflows/spell_check.yaml

@@ -11,6 +11,9 @@ jobs:
     name: Continuous Integration
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        
       - name: Check spelling
         uses: zwaldowski/cspell-action@v1
         with:

.vscode/cspell.json

@@ -3,9 +3,11 @@
     "enabled": true,
     "language": "en",
     "words": [
-        "leaderboard"
+        "firestore",
+        "leaderboard",
+        "unawaited"
     ],
     "ignorePaths": [
         ".github/workflows/**"
     ]
-  }
+}