update doc page

docs/20_Checks/check_onevm.md

@@ -23,17 +23,18 @@ icingaclient ALL=(ALL) NOPASSWD: /bin/onevm
 ______________________________________________________________________
 
 CHECK_ONEVM
-v1.1
+v1.2
 
 (c) Institute for Medical Education - University of Bern
 Licence: GNU GPL 3
+
+https://os-docs.iml.unibe.ch/icinga-checks/Checks/check_onevm.html
 ______________________________________________________________________
 
 Show count of vms in OpenNebula - listed by state and by host.
 It will go to warning if a non running state was found.
 It will go to critical if a vm is on failure.
 
-
 SYNTAX:
 check_onevm