update:更新版本号

Author: pedro

package.json

@@ -39,6 +39,6 @@
     "@koa/cors": "^2.2.3",
     "koa": "^2.7.0",
     "koa-bodyparser": "^4.2.1",
-    "lin-mizar": "^0.0.1-alpha.26"
+    "lin-mizar": "^0.0.1-alpha.28"
   }
 }