chore(ci): added markdown type to trigger

Author: 0xJacky

.github/workflows/documents.yml

@@ -10,6 +10,7 @@ on:
             - "docs/**/*.vue"
             - "docs/package.json"
             - "docs/.env*"
+            - "docs/**/*.md"
             - ".github/workflows/doc*.yml"
     pull_request:
         types: [ opened, synchronize, reopened ]
@@ -19,6 +20,7 @@ on:
             - "docs/**/*.vue"
             - "docs/package.json"
             - "docs/.env*"
+            - "docs/**/*.md"
             - ".github/workflows/doc*.yml"
 
 jobs: