improved intro presentation

intro_presentation/index.html

@@ -331,7 +331,11 @@ class: remark-slide-content-large
 class: center, middle, remark-slide-content-large
 
 <span style="font-size: 180%; color: #1F407A;">
-Contact us !
+    We also offer data science support,
+<br/>
+so don't hesitate to
+<br/>
+contact us...
 <br/>
 <br/>
 https://sis.id.ethz.ch/