Merge pull request #55 from microsoft/bruno-update-videos-to-mslearn

Update video thumbnails and links in documentation. Use aka.ms and videos in mslearn

Author: elbruno

01-IntroToGenAI/images/LIM_GAN_01_thumb_w480.png

@@ -4,7 +4,7 @@ Refresh your generative AI knowledge and understand the .NET tooling available t
 
 ---
 
-[![Introduction to Generative AI](http://img.youtube.com/vi/SZvE_meBdvg/0.jpg)](http://www.youtube.com/watch?v=SZvE_meBdvg)
+[![Introduction to Generative AI](./images/LIM_GAN_01_thumb_w480.png)](https://aka.ms/genainnet/videos/lesson1-genaireview)
 
 _⬆️Click the image to watch the video⬆️_
 

01-IntroToGenAI/readme.md

@@ -15,7 +15,7 @@ This lesson will guide you through setting up your development environment for t
 
 Let's dive in and set up your development environment! 🏃‍♂️
 
-[![Watch the Video Tutorial](https://img.youtube.com/vi/7kYoVRNQXyA/0.jpg)](https://youtu.be/7kYoVRNQXyA?feature=shared)
+[![Watch the Video Tutorial](./images/LIM_GAN_02_thumb_w480.png)](https://aka.ms/genainnet/videos/lesson2-setupdevenv)
 
 _⬆️Click the image to watch the video⬆️_
 

02-SetupDevEnvironment/images/LIM_GAN_02_thumb_w1120.png

@@ -6,7 +6,7 @@ In this lesson, we will explore the basics of building chat applications using l
 
 ## Text completions and chat
 
-[![Text completions and chat video](https://img.youtube.com/vi/Av1FCQf83QU/0.jpg)](https://youtu.be/Av1FCQf83QU?feature=shared)
+[![Text completions and chat video](./images/LIM_GAN_03_thumb_w480.png)](https://aka.ms/genainnet/videos/lesson3-chat)
 
 _⬆️Click the image to watch the video⬆️_
 
@@ -106,7 +106,7 @@ while (true)
 
 ## Function calling
 
-[![function explainer video](https://img.youtube.com/vi/i84GijmGlYU/0.jpg)](https://youtu.be/i84GijmGlYU?feature=shared)
+[![function explainer video](./images/LIM_GAN_04_thumb_w480.png)](https://aka.ms/genainnet/videos/lesson3-functioncall)
 
 _⬆️Click the image to watch the video⬆️_
 

02-SetupDevEnvironment/images/LIM_GAN_02_thumb_w480.png

@@ -4,7 +4,7 @@ In this lesson learn how to use **Retrieval-Augmented Generation (RAG)** in your
 
 ---
 
-[![RAG explainer video](https://img.youtube.com/vi/mY7O0OY2vho/0.jpg)](https://youtu.be/mY7O0OY2vho?feature=shared)
+[![RAG explainer video](./images/LIM_GAN_07_thumb_w480.png)](https://aka.ms/genainnet/videos/lesson3-rag)
 
 _⬆️Click the image to watch the video⬆️_
 

02-SetupDevEnvironment/readme.md

@@ -6,7 +6,7 @@ In this lesson learn how vision AI allows your apps to generate and interpret im
 
 ## Vision
 
-[![Vision AI explainer](https://img.youtube.com/vi/QXbASt1KXuw/0.jpg)](https://youtu.be/QXbASt1KXuw?feature=shared)
+[![Vision AI explainer](./images/LIM_GAN_06_thumb_w480.png)](https://aka.ms/genainnet/videos/lesson3-vision)
 
 _⬆️Click the image to watch the video⬆️_
 
@@ -80,7 +80,7 @@ Here's a point I want to drive home. We're conversing with a language model, or
 
 ## Audio AI
 
-[![Audio AI explainer video](https://img.youtube.com/vi/fuquPXRNqCo/0.jpg)](https://youtu.be/fuquPXRNqCo?feature=shared)
+[![Audio AI explainer video](./images/LIM_GAN_05_thumb_w480.png)](https://aka.ms/genainnet/videos/lesson3-realtimeaudio)
 
 _⬆️Click the image to watch the video⬆️_
 

03-CoreGenerativeAITechniques/01-lm-completions-functions.md

@@ -4,7 +4,7 @@ In this lesson learn to create an AI entity that... makes decisions and executes
 
 ---
 
-[![Agents explainer video](https://img.youtube.com/vi/Btkmw1Bosh0/0.jpg)](https://youtu.be/Btkmw1Bosh0?feature=shared)
+[![Agents explainer video](./images/LIM_GAN_08_thumb_w480.png)](https://aka.ms/genainnet/videos/lesson3-agents)
 
 _⬆️Click the image to watch the video⬆️_
 

03-CoreGenerativeAITechniques/02-retrieval-augmented-generation.md

@@ -23,7 +23,7 @@ See all the concepts you've learned in action in these real-world and practical
     - [Next steps](#next-steps)
 
 
-[![overall explainer video](https://img.youtube.com/vi/Ky4CACXJqR8/0.jpg)](https://youtu.be/Ky4CACXJqR8?feature=shared)
+[![overall explainer video](./images/LIM_GAN_09_thumb_w480.png)](https://aka.ms/genainnet/videos/lesson4-overview)
 
 _⬆️Click the image to watch the video⬆️_
 
@@ -37,7 +37,7 @@ In the first demo, we show how to use the Semantic Kernel to enhance the search
 
 ### eShopLite with semantic search
 
-[![eShop Semantic Search explainer video](https://img.youtube.com/vi/FlkruF6USro/0.jpg)](https://youtu.be/FlkruF6USro?feature=shared)
+[![eShop Semantic Search explainer video](./images/LIM_GAN_10_thumb_w480.png)](https://aka.ms/genainnet/videos/lesson4-eshoplite-semanticsearch)
 
 _⬆️Click the image to watch the video⬆️_
 
@@ -246,7 +246,7 @@ It also provides a more scalable and reliable search engine that can handle larg
 
 ### eShopLite with realtime audio
 
-[![eShop with real-time audio explainer video](https://img.youtube.com/vi/bx0hRNdr_bQ/0.jpg)](https://youtu.be/bx0hRNdr_bQ?feature=shared)
+[![eShop with real-time audio explainer video](./images/LIM_GAN_13_thumb_w480.png)](https://aka.ms/genainnet/videos/lesson4-eshoplite-realtimeaudio)
 
 _⬆️Click the image to watch the video⬆️_
 
@@ -325,7 +325,7 @@ Each tool is added to the session options, and the conversation session is start
 
 ## Creative Writer Agent
 
-[![Creative Writing Agent explainer video](https://img.youtube.com/vi/ZjZWilI_5z8/0.jpg)](https://youtu.be/ZjZWilI_5z8?feature=shared)
+[![Creative Writing Agent explainer video](./images/LIM_GAN_12_thumb_w480.png)](https://aka.ms/genainnet/videos/lesson4-creative-writer-agents)
 
 _⬆️Click the image to watch the video⬆️_