Merge pull request #255 from ReadmeCritic/master

Update README URLs based on HTTP redirects

Author: j0k3r

README.md

@@ -6,7 +6,7 @@
 [![Dependency Status](http://www.versioneye.com/user/projects/53f742e2e09da3dca800038f/badge.svg?style=flat)](http://www.versioneye.com/user/projects/53f742e2e09da3dca800038f)
 [![Codacy Badge](https://www.codacy.com/project/badge/1f8565ed2e554e4fa952ec4da6a2080b)](https://www.codacy.com/public/orthes/mediumeditorinsertplugin)
 
-This plugin expands capabilities of [MediumEditor](https://github.com/daviferreira/medium-editor) (a clone of medium.com WYSIWYG editor) and it enables users to insert into the editor various types of content (depending on available addons).
+This plugin expands capabilities of [MediumEditor](https://github.com/yabwe/medium-editor) (a clone of medium.com WYSIWYG editor) and it enables users to insert into the editor various types of content (depending on available addons).
 
 Current available addons:
 
@@ -82,6 +82,6 @@ $(function () {
 
 ## Sponsors
 
-[creator5](http://www.creator5.com) | [Maker](http://maker.me) | [Nusii](http://nusii.com)
+[creator5](http://www.creator5.com) | [Maker](https://maker.me/) | [Nusii](http://nusii.com)
 -------- | ----- | -----
 [![creator5](http://i.imgur.com/K9uiIuT.png)](http://www.creator5.com) | [![Maker](http://i.imgur.com/8t8wsM8.png)](http://maker.me) | [![nusii](http://i.imgur.com/tvdJ249.png)](http://nusii.com)