Update README.md

Tidy up RAG deep dive event link

Author: amynic

README.md

@@ -35,7 +35,7 @@ Get your questions answered about Azure AI Foundry, share your feedback, and dis
 | [MCP Dev Days](https://discord.gg/H3mCMmxS?event=1395140350401839135)                                   | Join us for MCP Dev Days, a two-day virtual event exploring the growing ecosystem around the Model Context Protocol (MCP), a standard that bridges AI models and the tools they rely on. | 29th/30th July 2025   |
 | [.NET + AI - Weekly Office Hours](https://discord.gg/MkbhUsTPPe?event=1386772209611182108)                                                          | Join us every Monday for an .NET + AI Office Hours. Come with your questions or just listen in - it's a great chance to connect, share, and learn together!                                                                                                                         | Every Monday - Discord   |
 | [Semnatic Kernel Community Office Hours](https://discord.gg/H3mCMmxS?event=1394369752058822718)                                            | Join us every Wednesday for Semantic Kernel Office Hours. Come with your questions or just listen in - it's a great chance to connect, share, and learn together!                                                                                                                                                     | Every Wednesday - Discord  |
-| [Python + AI Office Hours](https://discord.gg/mFYRHC9r?event=1393434562394329158)                                            | Office hours for the following series: https://developer.microsoft.com/en-us/reactor/series/S-1450/?wt.mc_id=facebook_S-1450_organicsocial_reactor                                                                                                                                                     | Every Thursday - Discord  |
+| [Python + AI Office Hours](https://discord.gg/mFYRHC9r?event=1393434562394329158)                                            | Office hours for the following series: [RAG Deep Dive](https://developer.microsoft.com/en-us/reactor/series/S-1450/?wt.mc_id=facebook_S-1450_organicsocial_reactor)                                                                                                                                                      | Every Thursday - Discord  |
 | [Foundry Models AMA - AI Assisted Development](https://discord.gg/mFYRHC9r?event=1382862912804360354)                                             | Your generative and agentic AI application journey starts with model choice. Join us every Friday starting Jun 20, as we invite subject matter experts for QA on topics like advanced reasoning, model context protocol, on-device AI, fine-tuning and distillation, agent catalog .. and more. Want to learn more about the topics and speakers we'll cover? Look at [https://aka.ms/model-mondays]( https://aka.ms/model-mondays) for our Season 2 schedule.                                                           | Friday, Aug 1st 2025 - Discord   |
 
 ## 📕 Courses