Update courses.yml

Author: mstreit

_data/courses.yml

@@ -2,31 +2,31 @@
   title: "AI & VIS (formerly Explainable AI)"
   institution: jku
   contribution: Lecture and lab
-  years: since 2020  
+  years: Since 2020  
 
 - author: streit 
   title: "Visualization (formerly Visual Analytics)"
   institution: jku
   contribution: Lecture and lab
-  years: since 2012
+  years: Since 2012
 
 - author: streit 
   title: "Advanced Interactive Visualization (formerly Information Visualization)"
   institution: jku
   contribution: Lecture and lab
-  years: since 2012
+  years: Since 2012
 
 - author: streit 
   title: "Accompanying Courses for PhD, Master and Bachelor Students"
   institution: jku
   contribution: Seminar
-  years: since 2012
+  years: Since 2012
 
 - author: streit 
   title: "Special Topcis: Visual Data Science Journal Club"
   institution: jku
   contribution: Seminar
-  years: 2023 - 2-25
+  years: 2023 - 2025
 
 - author: streit 
   title: Computer Graphics