Merge pull request #348 from smagara/patch-2

2.3 LangGraph: Fix notebook link in first_graph.mdx

Author: Jofthomas

units/en/unit2/langgraph/first_graph.mdx

@@ -10,7 +10,7 @@ Now that we understand the building blocks, let's put them into practice by buil
 This example demonstrates how to structure a workflow with LangGraph that involves LLM-based decision-making. While this can't be considered an Agent as no tool is involved, this section focuses more on learning the LangGraph framework than Agents.
 
 <Tip>
-You can follow the code in <a href="https://huggingface.co/agents-course/notebooks/resolve/main/unit2/langgraph/mail_sorting.ipynb" target="_blank">this notebook</a> that you can run using Google Colab.
+You can follow the code in <a href="https://huggingface.co/agents-course/notebooks/blob/main/unit2/langgraph/mail_sorting.ipynb" target="_blank">this notebook</a> that you can run using Google Colab.
 </Tip>
 ## Our Workflow