Update README.md

Author: ayushev

README.md

@@ -94,11 +94,11 @@ testFullAPI is used to briefly test major API calls to the library. The expected
 ![testFullAPI expected result](https://github.com/Infineon/Assets/raw/master/Pictures/OPTIGA%20Trust%20X%20testFullAPI.png)
 
 ## Available functions
-Available API is discribed in Wiki of the repository
+Available API is discribed in [Wiki](https://github.com/Infineon/arduino-optiga-trust-x/wiki/Available-functions) of the repository
 
 ## Contributing
 
 Please read [CONTRIBUTING.md](CONTRIBUTING.md) for details on our code of conduct and the process of submitting pull requests to us.
 
 ## License
-This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details