doc: adjust wording based on @wlynch's comment

Co-authored-by: Billy Lynch <wlynch92@gmail.com>

README.md

@@ -101,7 +101,7 @@ Report usage:
 go-licenses csv <package>
 ```
 
-Complying with license terms usage:
+Save licenses, copyright notices and source code (depending on license type):
 
 ```shell
 go-licenses save <package> --save_path=<save_path>