Merge branch 'update-deeplinkchecker' into 'master'

add link to cloud sites to deeplinkcheck.md

See merge request !339

deeplinkcheck.md

@@ -18,6 +18,7 @@ excerpt:
 * <https://hifis.net/services>
 * <https://hifis.net/mission/publications>
 * <https://hifis.net/partners>
+* <https://hifis.net/services/cloud/Helmholtz_cloud>
 
 
 ## Links to software.hifis.net