fix: don't lint markdown (#67)

Author: toby

.github/workflows/lint.yaml

@@ -5,11 +5,15 @@ on:
       - "**.go"
       - go.mod
       - go.sum
+    paths-ignore:
+      - '**.md'
   pull_request:
     paths:
       - "**.go"
       - go.mod
       - go.sum
+    paths-ignore:
+      - '**.md'
 
 permissions:
   contents: read