Updated readme

Author: fchasen

README.md

@@ -67,7 +67,7 @@ import RNFS from 'react-native-fs';
 // create a path you want to write to
 let path = RNFS.DocumentDirectoryPath + '/www';
 
-let server = new StaticServer(0, path);
+let server = new StaticServer(8080, path);
 ```
 
 #### Custom folder (iOS)
@@ -91,7 +91,7 @@ import RNFS from 'react-native-fs';
 // path where files will be served from (index.html here)
 let path = RNFS.MainBundlePath + '/www';
 
-let server = new StaticServer(0, path);
+let server = new StaticServer(8080, path);
 ```
 
 If the server should only be accessible from within the app, set `localOnly` to `true`
@@ -107,9 +107,22 @@ let server = new StaticServer(8080, path, {localOnly : true });
 
 ```
 
+If the server should not pause when the app is in the background, set `keepAlive` to `true`
+
+```javascript
+let server = new StaticServer({keepAlive : true });
+```
+
+Passing `0` as the port number will cause a random port to be assigned every time the server starts.
+It will reset to a new random port each time the server unpauses, so this should only be used with `keepAlive`.
+
+```javascript
+let server = new StaticServer(0, {keepAlive : true });
+```
+
 ## Credits
 
-* iOS server: [CocoaHTTPServer](https://github.com/robbiehanson/CocoaHTTPServer)
+* iOS server: [GCDWebServer](https://github.com/swisspol/GCDWebServer)
 * Android server: [NanoHttpd Webserver](https://github.com/NanoHttpd/nanohttpd)
 
 Thanks to [CorHttpd](https://github.com/floatinghotpot/cordova-httpd) and [react-native-httpserver](https://gitlab.com/base.io/react-native-httpserver#README) for the basis of this library.