Add doc directory into npm files

PeachScript · PeachScript · commit 93bbbd12c89c · 2016-12-30T16:51:10.000+08:00
diff --git a/package.json b/package.json
@@ -5,7 +5,8 @@
   "main": "dist/vue-infinite-loading.js",
   "files": [
     "dist/vue-infinite-loading.js",
-    "src"
+    "src",
+    "doc"
   ],
   "author": {
     "name": "PeachScript",
