Update README.md

README.md

@@ -46,7 +46,7 @@ Here are some examples of the content and star speakers we have this year:
 | COM215 | Intro genomics data analysis on the Azure cloud | Robert Lleras  | [Bioinformatics algorithms](bioinformaticsalgorithms.com), [Cromwell on Azure](https://github.com/microsoft/CromwellOnAzure),[Microsoft Genomics](https://www.microsoft.com/genomics) |  |
 | COM214 | The Cloud is More than Just that Thing in the Sky | Heather Brevard and Michael Aldridge | [Check out Azure Fundamentals](https://docs.microsoft.com/en-us/learn/paths/azure-fundamentals/) |  |
 | COM216 | Azure Machine Learning in Action! | [Francesca Lazzeri](https://twitter.com/frlazzeri) and [Sarah Guthals](https://twitter.com/sarahguthals) | [AutoML Docs](www.aka.ms/AutoMLConfig-Class), [AutoML Classification Tutorial](https://docs.microsoft.com/en-us/azure/machine-learning/tutorial-first-experiment-automated-ml) |  |
-| COM218 | Can Polar Bears help predict climate change? Find out with Computer Vision! | [Justin Garrett](https://www.linkedin.com/in/justgar/) | [Polar  Bear Tracker Learn Module](http://aka.ms/PolarBearModel) |  |
+| COM218 | Can Polar Bears help predict climate change? Find out with Computer Vision! | [Justin Garrett](https://www.linkedin.com/in/justgar/) | [Polar  Bear Tracker Learn Module](http://aka.ms/PolarBearModel) | [Slides](https://slidesandresources.blob.core.windows.net/slides/COM218_JustinGarrett_FINAL.pdf) |
 | COM210 | VSCode as an interactive learning environment | [Lee Stott](https://www.linkedin.com/in/leestott/) | [GistPad VSCode Extension](https://marketplace.visualstudio.com/items?itemName=vsls-contrib.gistfs), [CodeTour VSCode Extension](https://marketplace.visualstudio.com/items?itemName=vsls-contrib.codetour) |  |
 | COM229 | Introduction to Digital Identity, the foundation of digital trust | [Krsitina Yasuda](https://twitter.com/kristinayasuda) | [Azure Active Directory Docs](https://docs.microsoft.com/azure/active-directory/), [Identity and Access Learn Module](https://docs.microsoft.com/learn/paths/manage-identity-and-access/) |  |
 | COM230 | Open the Learning Door to Computer Science with Minecraft | Masami Ishiyama | [Download Minecraft: Education Edition](https://education.minecraft.net/) |  |