add warning on using full logo only

README.md

@@ -71,7 +71,7 @@ Frustrated by the time consuming process, John and Jared began working together
 
 Our logo is a combination of the name of the company, which is also the name of our product, and our mascot, named K-Ray. K-Ray is a beautiful, and friendly manta ray voyaging in the cloud native space.
 
-When it's possible, we prefer that you use the horizontal version of our logo.
+When it's possible, we prefer that you use the horizontal version of our logo. Please use the full logo: do not separate K-Ray from the company name.
 
 - [Black text (horizontal)](logo/kubefirst-dark.svg)
 - [White text (horizontal)](logo/kubefirst-light.svg)