fix gh workflow

Author: wec

.github/workflows/docs.yml

@@ -27,6 +27,8 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
+      - name: Install pnpm
+        uses: pnpm/action-setup@v2
       - name: Setup Node
         uses: actions/setup-node@v4
         with:

docs/index.md

@@ -47,6 +47,6 @@ features:
     details: Installable application.
 ---
 
-## Screenshots
+## Screenshot
 
 ![DashLit](/main_page.png "DashLit")