Style: capitalize table heading; credentials in plural

doc.zih.tu-dresden.de/docs/access/jupyterhub.md

@@ -34,7 +34,7 @@ Old taurus
 
 ## Login Page
 
-At login page please use your ZIH credential (without @tu-dresden.de).
+At login page please use your ZIH credentials (without @tu-dresden.de).
 
 For example:
 Username: ddde223z
@@ -55,7 +55,7 @@ Our simple form offers you the most important settings to start quickly.
 
 We have created three profiles for each Cluster, namely:
 
-| name                                         | optimized for   | recommended for |
+| Name                                         | Optimized for   | Recommended for |
 |----------------------------------------------|-----------------|---------------------------|
 | Alpha - 1 core, 1,5GB 1 hour                 | x86_64 (AMD)    | python programming        |
 | Alpha - 2 Core, 3GB, 4 Hours                 | x86_64 (AMD)    | R programming             |