Correction in the title

Updated heading to improve consistency in capitalization.

Author: Karuna-Mendix

content/en/docs/marketplace/genai/concepts/prompt-engineering.md

@@ -184,7 +184,7 @@ For the current question, please base the answer on the following pieces of info
 </information>
 ```
 
-### Let the model assume a role
+### Let the Model Assume a Role
 
 You can prime the model by explaining what it does. This will create a bias in the model towards specific reasoning and increase the quality of their answer based on what you expect from the (stereotypical) persona.