Update tutorials/how-to-implement-rag-generativeapis/index.mdx

Co-authored-by: Jessica <[email protected]>

Author: fpagny

tutorials/how-to-implement-rag-generativeapis/index.mdx

@@ -34,7 +34,7 @@ In this tutorial, you will learn how to implement RAG using LangChain, a leading
 
 ### Install required packages
 
-1. Run the following command to install the required python packages:
+1. Run the following command to install the required Python packages:
 
    ```sh
    pip install langchain langchainhub langchain_openai langchain_community langchain_postgres unstructured "unstructured[pdf]" libmagic python-dotenv psycopg2 boto3