deploy arbitrary branches to staging

Author: overheadhunter

.github/workflows/gh-pages.yml

@@ -2,6 +2,7 @@ name: GitHub Pages
 
 on:
   push:
+  workflow_dispatch:
 
 jobs:
   # BUILD
@@ -70,7 +71,7 @@ jobs:
 
   # DEPLOY STAGING
   deploy-staging:
-    if: github.ref == 'refs/heads/develop'
+    if: github.event_name == 'workflow_dispatch' || github.ref == 'refs/heads/develop'
     name: Deploy Staging to GitHub Pages
     runs-on: ubuntu-latest
     needs: [build]