Update build.yml

Author: paulofaria

.github/workflows/build.yml

@@ -3,9 +3,10 @@ name: Build
 on:
   push:
     branches: [ master ]
+    paths-ignore: [ README.md ]
   pull_request:
     branches: [ master ]
-
+    paths-ignore: [ README.md ]
 jobs:
   build:
     name: Build and test on ${{ matrix.os }}