Merge pull request #618 from lcxfs1991/patch-1

update gh-pages to fix yarn install errors

Author: SpaceK33z

package.json

@@ -59,7 +59,7 @@
     "extract-text-webpack-plugin": "^1.0.1",
     "file-loader": "^0.9.0",
     "fontgen-loader": "^0.2.1",
-    "gh-pages": "^0.11.0",
+    "gh-pages": "^0.12.0",
     "github": "^5.2.3",
     "html-webpack-plugin": "^2.22.0",
     "http-server": "^0.9.0",