build(husky): Run git add on formatted updated files (#733)

tmcw · web-flow · commit 9eca36cdc3dd · 2017-04-15T15:59:55.000-04:00
diff --git a/package.json b/package.json
@@ -106,7 +106,8 @@
   },
   "lint-staged": {
     "*.js": [
-      "prettier --write --single-quote"
+      "prettier --write --single-quote",
+      "git add"
     ]
   },
   "greenkeeper": {
