master: update readme

Author: Emma Doyle

README.md

@@ -1,12 +1,13 @@
-# rxpy
-A fast (experimental) RX algorithm implementation in Python 3.6+ with overhead reduction based on entropy estimation via compression.
+# rx_algorithm
 
-# Example usage
+A fast (experimental) RX algorithm implementation in Python 3.9+ with overhead reduction based on entropy estimation via compression.
+
+## Example usage
 
 ```python
-from rx import rx
+from rx_algorithm import rx
 from rx.utils import plot
 
 X = rx(array)
 plot(X, 'out.png')
-```
+```