Fixing document for adapter

README.md

@@ -248,7 +248,7 @@ These are the available config options for making requests. Only the `url` is re
   withCredentials: false, // default
 
   // `adapter` allows custom handling of requests which makes testing easier.
-  // Return a promise and supply a valid response (see [response docs](#response-api)).
+  // Return a promise and supply a valid response (see lib/adapters/README.md).
   adapter: function (config) {
     /* ... */
   },

lib/adapters/README.md

@@ -7,7 +7,7 @@ The modules under `adapters/` are modules that handle dispatching a request and
 ```js
 var settle = require('./../core/settle');
 
-module.exports myAdapter(config) {
+module.exports = function myAdapter(config) {
   // At this point:
   //  - config has been merged with defaults
   //  - request transformers have already run