Update README.md

Co-authored-by: Terrell Russell <terrellrussell@gmail.com>

Author: d-w-moore

README.md

@@ -181,7 +181,7 @@ returns from the transaction.
 If an .irodsA file exists already, it will be overwritten.
 
 Examples:
-For the native authentication scheme, we can use the currently set iRODS password to create .irodsA file from Python thus:
+For the `native` authentication scheme, we can use the currently set iRODS password to create .irodsA file from Python thus:
 
 ```python
 import irods.client_init as iinit