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

@@ -81,7 +81,7 @@ In this tutorial, you will learn how to implement RAG using LangChain, a leading
 
 ### Import required modules
 
-3. Create a `embed.py` file and add the following code to it:
+Create an `embed.py` file and add the following code to it:
    ```python
    # embed.py
    from dotenv import load_dotenv