Add github action to run linter

.github/workflows/lint.yml

@@ -0,0 +1,19 @@
+name: Lint CP/CPS
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+jobs:
+  lint:
+
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+      - name: Run linter
+        working-directory: ./tools/lint
+        run: go run . ../../CP-CPS.md

.github/workflows/pr_tools.yml

@@ -3,10 +3,10 @@ name: Test Tools
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 jobs:
   build:
 
@@ -16,9 +16,9 @@ jobs:
         python-version: [3.6, 3.7, 3.8, 3.9]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies

tools/lint/main.go

@@ -53,6 +53,7 @@ func main() {
 		os.Exit(1)
 	}
 
+	fmt.Println("lint checks complete; no findings")
 }
 
 func lintHeadings(lines []string) error {