Update README.md

README.md

 
 ### Development
 
-If you're insteresting in improving this module, check our [development guide](https://github.com/wkh237/react-native-fetch-blob/wiki/Development-Guide). 
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+If you're insterested in hacking this module, check our [development guide](https://github.com/wkh237/react-native-fetch-blob/wiki/Development-Guide), there might be something helpful. 
 Please feel free to make a PR or file an issue.