Updated Contributing File (#3639)

Updated the changes required in the Contributing File.

CONTRIBUTING.md

@@ -22,7 +22,7 @@ This is probably one of the most important things you can do as a contributor an
 
 The first is the [JavaDoc](https://www.codenameone.com/javadoc/) which you can edit directly in the source code, if there is an ommission or a mistake you can just press the edit button on the file and make the change directly even without an IDE. These pull requests are highly appreciaed and will help future generations of developers!
 
-The [Codename One developer guide](https://www.codenameone.com/manual/) is genenrated from [the wiki pages of this project](https://github.com/codenameone/CodenameOne/wiki/) you can just [edit the wiki directly](https://www.codenameone.com/blog/wiki-parparvm-performance-actionevent-type.html) and your changes propogate into the developers guide. Don't forget to edit the authors section and add some credit!
+The [Codename One developer guide](https://www.codenameone.com/manual/) is generated from [the wiki pages of this project](https://github.com/codenameone/CodenameOne/wiki/). You can just [edit the wiki directly](https://www.codenameone.com/blog/wiki-parparvm-performance-actionevent-type.html) and your changes will reflect in the developers guide. Don't forget to edit the authors section and add some credit!
 
 The wiki uses the asciidoc format to generate HTML & PDF versions. There are plenty of guides on the internet to asciidoc but the syntax is pretty simple. Please try to maintin the convention for the guide as we automate many pieces in the guide generation and conversion.