Update README.md

README.md

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 # The Asset-Importer-Lib Docs
-The Asset-Importer-Lib Documentation repository. 
+The official Asset-Importer-Lib Documentation repository. 
 
 Current build status: [![Documentation Status](https://readthedocs.org/projects/assimp-docs/badge/?version=latest)](https://assimp-docs.readthedocs.io/en/latest/?badge=latest)
 
 [Latest version from master](https://assimp-docs.readthedocs.io/en/latest/)
 
 ## How to contribute
-- Clone from this repository 
-- Prepare a branch with changes in.
+- Clone or create a fork from this repository 
+- Prepare a branch with your changes in.
 - Create a pull-request
 - The pull-request will be reviewed and merged afterwards. We will add your name to the list of contributors.
+