only-en, fixed special characters, pick-25

Author: thomaskoslowski

src/onprem/en/intro_setup.asciidoc

@@ -89,7 +89,7 @@ The virtual appliance has its own version management, different from the {CMK} s
 Therefore, you can update the appliance software by installing a new firmware -- independently of the {CMK} software installed in the appliance.
 
 {cee-only}
-The virtual appliance is available for all commercial xref:glossar#edition[editions], also in the license states "Trial" and "Free".
+The virtual appliance is available for all commercial xref:glossar#edition[editions], also in the license states 'Trial' and 'Free'.
 You can find out how to proceed with the installation in the xref:appliance_virt1_quick_start#[Quick start guide].