ci(build): skip build on readme-only changes (#37)

Author: CalvinAllen

.github/workflows/build.yml

@@ -3,14 +3,16 @@ name: Build
 on:
   workflow_dispatch:
   pull_request:
-    types: [opened, reopened]
+    types: [opened, reopened, synchronize]
     paths:
       - 'src/**'
-      - '*.slnx'
       - '.github/workflows/build.yml'
   push:
     branches:
       - main
+    paths:
+      - 'src/**'
+      - '.github/workflows/build.yml'
 
 jobs:
   build: