Merge pull request #60 from rtucek/github-actions

GitHub actions v2

Author: rtucek

.github/workflows/docs.yml

@@ -1,4 +1,4 @@
-name: Build and deploy docs
+name: Docs
 
 on: workflow_dispatch
 
@@ -31,6 +31,8 @@ jobs:
   deploy:
     name: Deploy to GitHub Pages
     runs-on: ubuntu-latest
+    environment: github-pages
+    needs: build
 
     steps:
       - name: Download build artifact