feat: add more links

guide/reference.md

@@ -11,10 +11,16 @@ Find below a list of important links and other short info to get started at ETH
 - ETH D-INFK Discord: https://discord.com/invite/eth-dinfk
 
 
+## Other ETH guides
+These are Ersti / 
+- https://cs.shivi.io/02-ETHZ/Ersti-Guide
+- https://xyquadrat.ch/infk-faq
+
+
 ## VIS (Verein der Informatik Studierenden)
 <!-- Links are automatically anchored -->
 - Website: https://vis.ethz.ch
-- VIS Erstie Guide: https://vis.ethz.ch/en/current/info-first-year-students/
+- VIS Ersti Guide: https://vis.ethz.ch/en/current/info-first-year-students/
 - Exam Collection (ComSol): https://exams.vis.ethz.ch
 - Grade Statistics: https://vis.ethz.ch/en/services/gradestatistics/
 - VIS Events: https://vis.ethz.ch/en/events/
@@ -25,6 +31,7 @@ Find below a list of important links and other short info to get started at ETH
 - Department Website: https://inf.ethz.ch
 - Department GitLab: https://gitlab.inf.ethz.ch
 - Moodle: https://moodle-app2.let.ethz.ch
+- EduApp: https://eduapp.ethz.ch
 - Mail: Via [Outlook online](https://outlook.office.com)