Add disclaimer text

Author: frankkopp

docs/pilots-corner/a380x/a380x-advanced-guides/oans-btv.md

@@ -15,6 +15,8 @@ well as setup and operation of BTV.
 
     BTV can be set up manually without the OANS airport map through the OANS control panel, this is however not explained in this guide.
 
+<p style="color:coral;">This is for simulation purposes only.</p>
+
 ---
 
 ## Airport navigation

docs/pilots-corner/a380x/a380x-advanced-guides/overview.md

@@ -16,7 +16,7 @@ Each page was reviewed by an A380 type rated pilot and provides accurate informa
 !!! info "Airline SOP"
     Please be aware that different airlines may have slightly different procedures at different stages of flight.
 
-**For Simulation Use Only**
+<p style="color:coral;">This is for simulation purposes only.</p>
 
 ---