Build testing in CI

.github/workflows/build.yaml

@@ -0,0 +1,25 @@
+on:
+  push:
+    branches:
+      - master
+      - test
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout Repository
+      uses: actions/checkout@v2
+
+    - name: Set up TeXLive
+      uses: docker://texlive/texlive
+
+    - name: Build
+      run: make
+
+    - name: Clean
+      run: make cleanall