Update workflow targets

Author: lornajane

.github/workflows/static.yml

@@ -3,7 +3,7 @@ name: Deploy Sphinx to GitHub Pages
 on:
   # Runs on pushes targeting the default branch
   push:
-    branches: ["main"]
+    branches: ["main", "master"]
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch: