build: refine commitlint config

.commitlintrc.js

@@ -9,8 +9,12 @@ module.exports = {
   ],
   rules: {
     'scope-enum': [
-      'cli',
-      ...VuepressPackages
-    ].map(name => `$${name}`)
+      2,
+      'always',
+      [
+        'cli',
+        ...VuepressPackages
+      ].map(name => `$${name}`)
+    ]
   }
 }

package.json

@@ -30,7 +30,8 @@
   },
   "husky": {
     "hooks": {
-      "pre-commit": "lint-staged"
+      "pre-commit": "lint-staged",
+      "commit-msg": "commitlint -E HUSKY_GIT_PARAMS"
     }
   },
   "lint-staged": {