Merge branch 'mflehmig--tu-dresden.de-main-patch-36733' into 'main'

Doc: Barnard has 4 login nodes

See merge request !889

doc.zih.tu-dresden.de/docs/jobs_and_resources/barnard_test.md

@@ -17,7 +17,7 @@ Here, you can find few hints which might help you with the first steps.
 ## Login to Barnard
 
 * All users and projects from Taurus now can work on Barnard.
-* They can use `login[1-2].barnard.hpc.tu-dresden.de` to access the system
+* They can use `login[1-4].barnard.hpc.tu-dresden.de` to access the system
 from campus (or VPN). [Fingerprints](/access/key_fingerprints/#barnard)
 
 * All users have *new* home file systems, this means: