Move workflows to repo root for Gitea Actions

.gitea/workflows/deploy.yml

@@ -0,0 +1,24 @@
+name: Build and Deploy to GH Pages
+on: [workflow_dispatch]
+jobs:
+    publish:
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v2
+
+            - name: Install and build
+              run: |
+                  npm install
+                  npm run build
+              env:
+                  REACT_APP_GA_MID: ${{ secrets.REACT_APP_GA_MID }}
+
+            - name: Deploy to GitHub Pages
+              if: success()
+              uses: crazy-max/ghaction-github-pages@v2
+              with:
+                  target_branch: gh-pages
+                  build_dir: build
+              env:
+                  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}