Use nethz as username for ETH instead of shortname

Author: mathinic

README.md

@@ -17,7 +17,7 @@ This repo contains a script to automatically enroll to ASVZ lessons
 - Save your credentials locally and reuse them on the next run
 - Note: 
     UZH, ZHAW and PHZH use SWITCH edu-ID as login (*email* + password).
-    ETH uses own login (*shortname* + password)
+    ETH uses own login (*nethz* + password)
     ASVZ uses own login (*ASVZ-ID* + password)
 
 ## Run