Revision updates based on Job's comments.

Author: TimEvens

README.md

@@ -11,7 +11,7 @@ Generating text from xml
 > One time only
 
 * Install the latest [xml2rfc](https://xml2rfc.tools.ietf.org/)
-* On Mac, you can install it using ```brew install xml2rfc```
+* Can install using ```pip install xml2rfc```
 
 > You'll do this each time you want to generate a text version