add rf snippet

Author: capaj

README.md

@@ -532,6 +532,12 @@ return this
 return null
 ```
 
+#### `rf⇥` return arrow function
+
+```js
+return (${1:arguments}) => ${2:statement}
+```
+
 #### `ro⇥` return new object
 
 ```js
@@ -917,6 +923,7 @@ ${1:emitter}.on('${2:event}', (${3:arguments}) => {
 
 ```js
 'use strict'
+
 ```
 
 #### `js⇥` JSON Stringify

snippets/javascript.json

@@ -555,6 +555,10 @@
     "prefix": "r",
     "body": "return ${0}"
   },
+  "return arrow function": {
+    "prefix": "rf",
+    "body": "return (${1:arguments}) => ${2:statement}"
+  },
   "yield": {
     "prefix": "y",
     "body": "yield ${0}"