GitHub build action

.github/workflows/makefile.yml

@@ -0,0 +1,20 @@
+name: Makefile CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+          
+    - name: Install dependencies
+      run: sudo apt-get update && sudo apt-get install esbuild
+      
+    - name: Clean
+      run: make clean
+
+    - name: Make
+      run: make