only-en - dictionary updates, pick-25

(cherry picked from commit 717fbb2)

Author: thomaskoslowski

src/onprem/en/appliance_usage.asciidoc

@@ -710,7 +710,7 @@ Support is provided within the framework of the contracted support agreement.
 [discrete]
 ==== Support diagnostics
 
-Should you ever be confronted with problems in {CMK} that you -- with the help of this User guide -- cannot solve by yourself,
+Should you ever be confronted with problems in {CMK} that you -- with the help of this User Guide -- cannot solve by yourself,
 the official link:https://checkmk.com/product/support[{CMK}-Support^] and the link:https://forum.checkmk.com/[{CMK}-Forum^] are available which provide two excellent contact points.
 For both a precise description of the error or problem is naturally essential.
 In addition, certain specific information about your {CMK} appliance is mandatory for a quick analysis and solution.