Fix CORS docs

Fixes #1061

Author: saharj

README.md

@@ -50,7 +50,7 @@ npm start
 * [Importing your Swagger document](./docs/import.md)
 * [Development Guide](./docs/development.md)
 * [Configuration Guide](./docs/config.md)
-* [Cross Origin Request(CORS) issues](docs/cors.md)
+* [Cross Origin Request Sharing(CORS) issues](docs/cors.md)
 
 [Contributing](./CONTRIBUTING.md)
 

docs/cors.md

@@ -1,6 +1,6 @@
 # HTTP access control (CORS) issues
 
-Swagger Editor is a web application and by its nature is limited to [HTTP access control policy](https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS). If you can't make calls using **Try this operation** component of the editor it's very likely because the server is not allowing the `swagger.io` domain to make [`XHR`](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest) (also known as AJAX) calls to it.
+Swagger Editor is a web application and by its nature is limited to [HTTP access control policy](https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS). If you can't make calls using **Try this operation** component of the editor it's very likely because the server is not allowing the `editor.swagger.io` domain to make [`XHR`](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest) (also known as AJAX) calls to it.
 
 ## How to fix CORS issues
 
@@ -12,7 +12,7 @@ To enable CORS in your server you need to add following headers to your HTTP res
 
 
 ```
-Access-Control-Allow-Origin: http://swagger.io
+Access-Control-Allow-Origin: editor.swagger.io
 Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept
 ```