v1.1.2: Fixed import bug for Node based environment + updated polyfill sections + updated links

Author: Voltra

README.md

@@ -16,8 +16,8 @@ First you need to get this library, either by using [npm (w/ node)](https://node
 
 Then you will need to use it in your application :
 
-* \>= ES6 : `import $json from "@voltra/json"`
-* Node (<ES6) : `const $json = require("@voltra/json")`
+* \>= ES6 : `import {$json} from "@voltra/json"`
+* Node (<ES6) : `const {$json} = require("@voltra/json")`
 * In your HTML files : `<script src="your/path/to/dist/jsonclient.js"></script>` (exposes the variable `$json`)
 
 
@@ -52,11 +52,11 @@ Therefore, this library enables you to ease your job at emitting POST requests.
 $json.post :: (
 	url: string,
 	data: any,
-	cache: $json.postOptions.Cache,
-	credentials: $json.postOptions.Credentials,
-	mode: $json.postOptions.Mode,
-	redirect: $json.postOptions.Redirect,
-	referrer: $json.postOptions.Referrer
+	cache: $json.postOptionsEnums.Cache,
+	credentials: $json.postOptionsEnums.Credentials,
+	mode: $json.postOptionsEnums.Mode,
+	redirect: $json.postOptionsEnums.Redirect,
+	referrer: $json.postOptionsEnums.Referrer
 ) -> Promise
 ```
 
@@ -82,8 +82,25 @@ Default values are located in the object `$json.defaults` and are classified per
 There are only two dependencies :
 
 * [fetchJSON](https://www.npmjs.com/package/fetch_json) : Used in developpement as the GET request provider (I'm the on that needs it)
+
 * The Fetch API or `fetch` : As part of the Fetch API, `fetch` allows to emit HTTP requests. This library is heavily based around this function and therefore requires it, modern browsers implement it but there are also a lot of polyfills out there, here are two of them :
+
+  * [fetch-ponyfill](https://www.npmjs.com/package/fetch-ponyfill) : Works for both browser and Node :
+
+    ```javascript
+    const {fetch, Request, Response, Headers} = require("fetch-ponyfill")();
+    global.fetch = fetch; //For Node, this.fetch = fetch for browser
+
+    ///OR
+
+    import fetchPonyfill from "fetch-ponyfill"
+    const {fetch, Request, Response, Headers} = fetchPonyfill();
+    ```
+
+    ​
+
   * [whatwg-fetch](https://www.npmjs.com/package/whatwg-fetch) : For old browsers
+
   * [node-fetch](https://www.npmjs.com/package/node-fetch) : For Node-based environments
 
 
@@ -104,7 +121,7 @@ If you don't find an answer to your problem, feel free to ask for help on my [Di
 >
 > Make sure that the version of the library you have is at least 1.1.0 (check the `package.json` file), if not update it for the latest version.
 >
-> If you're still having this problem post v1.1.0, feel free to [open an issue on GitHub]("url here boi").
+> If you're still having this problem post v1.1.0, feel free to [open an issue on GitHub](https://github.com/Voltra/jsonclient/issues).