trying an action with a macos build

Author: capnramses

.github/workflows/ccpp.yml

@@ -9,7 +9,10 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+		strategy:
+			matrix:
+				os: [ubuntu-latest, macOS-latest]
 
     steps:
     - uses: actions/checkout@v2