Update README.md

Author: jschueller

README.md

@@ -1,14 +1,14 @@
-NLOpt Python
+NLopt Python
 ============
 
 [![PyPI version](https://badge.fury.io/py/nlopt.svg)](https://badge.fury.io/py/nlopt)
 ![Build](https://github.com/DanielBok/nlopt-python/workflows/Build/badge.svg?branch=master)
 
-This project builds Python wheels for the NLOpt library. NLOpt contains various routines for non-linear optimization.
+This project builds Python wheels for the NLopt library. NLopt contains various routines for non-linear optimization.
 
 ## Versions supported
 
-The project supports Python versions 3.6+ and above for Windows, MacOS, and Linux.
+The project supports Python versions 3.9+ and above for Windows, MacOS, and Linux.
 
 ## Installation
 
@@ -18,4 +18,4 @@ pip install nlopt
 
 ## Documentation
 
-For more information on how to use NLOpt, refer to the [documentation](https://nlopt.readthedocs.io/en/latest/NLopt_Python_Reference/).
+For more information on how to use NLopt, refer to the [documentation](https://nlopt.readthedocs.io/en/latest/NLopt_Python_Reference/).