Add readme action and rename pio CI action

.github/workflows/action.yaml → .github/workflows/build.yaml

@@ -1,6 +1,11 @@
-name: PlatformIO CI
+name: Build project with PlatformIO
 
-on: [push]
+on:
+  push:
+    paths:
+      - '.github/workflows/build.yaml'
+      - 'src/**'
+      - 'platformio.ini'
 
 jobs:
   build:
@@ -20,6 +25,5 @@ jobs:
           check-latest: true
       - name: Install PlatformIO Core
         run: pip install --upgrade platformio
-
-      - name: Build PlatformIO Project
+      - name: Build project
         run: pio run

.github/workflows/readme.yaml

@@ -0,0 +1,18 @@
+name: Check links in README
+
+on:
+  push:
+    paths:
+      - '.github/workflows/readme.yaml'
+      - 'README.md'
+  schedule:
+  # run twice a month (on 1st and 15th of every month at 12:00 UTC)
+    - cron: '0 12 1,15 * *'
+
+jobs:
+  linkinator:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run Linkinator
+        uses: JustinBeckwith/linkinator-action@v1