Fix broken link

Fix broken link to marketing gen ai sample.

Author: james-jory

README.md

@@ -21,7 +21,7 @@ The [next_steps/](next_steps/) folder contains detailed examples of the followin
 
 * Generative AI
   - [Personalized marketing campaigns](/next_steps/generative_ai/personalized_marketing_campaign/)
-  - [User personalized marketing messaging with Amazon Personalize and Generative AI](user_personalized_marketing_messaging_with_amazon_personalize_and_gen_ai/). 
+  - [User personalized marketing messaging with Amazon Personalize and Generative AI](next_steps/generative_ai/user_personalized_marketing_messaging_with_amazon_personalize_and_gen_ai). 
         - Use this sample to create personalized marketing content (for instance emails) for each user using [Amazon Personalize](https://aws.amazon.com/personalize/) and [Amazon Bedrock](https://aws.amazon.com/bedrock/). In this sample you will train an [Amazon Personalize](https://aws.amazon.com/personalize/) 'Top picks for you' Recommender to get personalized recommendations for each user. You will then generate a prompt that includes the user's preferences, recommendations, and demographics. Finally you will use [Amazon Bedrock](https://aws.amazon.com/bedrock/) to generate a personalized email for each user.
   - [Amazon Personalize Langchain extensions](https://github.com/aws-samples/amazon-personalize-langchain-extensions)