update TOC

Author: craigshoemaker

articles/static-web-apps/TOC.yml

@@ -26,7 +26,7 @@
                   href: get-started-cli.md
 - name: Scenarios
   items:
-  - name: Build site with a web framework
+  - name: Build a site with a web framework
     items:
     - name: 1 - Pick a web framework
       href: deploy-web-framework.md