Updated docs to monorepo state.

README.md

@@ -2,9 +2,6 @@ CKEditor 5 core editor architecture
 ========================================
 
 [![npm version](https://badge.fury.io/js/%40ckeditor%2Fckeditor5-core.svg)](https://www.npmjs.com/package/@ckeditor/ckeditor5-core)
-[![Build Status](https://travis-ci.org/ckeditor/ckeditor5-core.svg?branch=master)](https://travis-ci.org/ckeditor/ckeditor5-core)
-[![Coverage Status](https://coveralls.io/repos/github/ckeditor/ckeditor5-core/badge.svg?branch=master)](https://coveralls.io/github/ckeditor/ckeditor5-core?branch=master)
-<br>
 [![Dependency Status](https://david-dm.org/ckeditor/ckeditor5-core/status.svg)](https://david-dm.org/ckeditor/ckeditor5-core)
 [![devDependency Status](https://david-dm.org/ckeditor/ckeditor5-core/dev-status.svg)](https://david-dm.org/ckeditor/ckeditor5-core?type=dev)
 

docs/api/core.md

@@ -24,11 +24,11 @@ npm install --save @ckeditor/ckeditor5-core
 
 ## Contribute
 
-The source code of this package is available on GitHub in https://github.com/ckeditor/ckeditor5-core.
+The source code of this package is available on GitHub in https://github.com/ckeditor/ckeditor5/tree/master/packages/ckeditor5-core.
 
 ## External links
 
 * [`@ckeditor/ckeditor5-core` on npm](https://www.npmjs.com/package/@ckeditor/ckeditor5-core)
-* [`ckeditor/ckeditor5-core` on GitHub](https://github.com/ckeditor/ckeditor5-core)
+* [`ckeditor/ckeditor5-core` on GitHub](https://github.com/ckeditor/ckeditor5/tree/master/packages/ckeditor5-core)
 * [Issue tracker](https://github.com/ckeditor/ckeditor5/issues)
 * [Changelog](https://github.com/ckeditor/ckeditor5-core/blob/master/CHANGELOG.md)