Fix CI for PR and non-master branch pushes

Author: taoky

.github/workflows/build.yaml renamed to .github/workflows/deploy.yaml

@@ -3,10 +3,7 @@ name: build
 on:
   push:
     branches:
-      - "*"
-  pull_request:
-    branches:
-      - "*"
+      - "master"
 
 permissions:
   contents: write

.github/workflows/non-master-check.yaml

@@ -0,0 +1,66 @@
+name: build
+
+on:
+  pull_request:
+  push:
+    branches-ignore:
+      - "master"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install dependencies
+        run: |
+          pip3 install \
+            -r requirements.txt \
+            -r requirements-ci.txt
+
+      - name: "Linting: autocorrect"
+        continue-on-error: true
+        run: |
+          curl -fsSL https://raw.githubusercontent.com/huacnlee/autocorrect/main/install | sh
+          autocorrect --fix
+
+      - name: "Linting: markdownlint-cli2 Part 1"
+        uses: DavidAnson/markdownlint-cli2-action@v15
+        continue-on-error: true
+        with:
+          fix: true
+          globs: |
+            docs/**/*.md
+            README.md
+
+      - name: "Linting: markdownlint-cli2 Part 2"
+        uses: DavidAnson/markdownlint-cli2-action@v15
+        continue-on-error: true
+        with:
+          fix: true
+          globs: |
+            docs/**/*.md
+            README.md
+      - name: Stop and report errors
+        run: |
+          git add -A
+          if ! git diff-index --quiet --cached HEAD --; then
+            echo "Stop."
+            exit 1
+          fi
+
+      - name: Build docs
+        run: |
+          mkdocs -v build
+          : > site/.nojekyll
+          echo -n '201.ustclug.org' > site/CNAME
+      - name: Upload artifact
+        if: github.ref == 'refs/heads/master'
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: site