Style: Capitalize section heading; add new line to admonition

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

@@ -21,6 +21,7 @@ case.
 ## Access
 
 !!! note
+
     This service is only available for users with an active HPC project.
     See [Application for Login and Resources](../application/overview.md), if
     you need to apply for an HPC project.
@@ -31,7 +32,7 @@ JupyterHub is available at
 Old taurus
 [https://taurus.hrsk.tu-dresden.de/jupyter](https://taurus.hrsk.tu-dresden.de/jupyter).
 
-## Login page
+## Login Page
 
 At login page please use your ZIH credential (without @tu-dresden.de).