Adding slide decks and links to videos (#263)

1-getting-started/lessons/1-introduction-to-iot/README.md

@@ -4,6 +4,14 @@
 
 > Sketchnote by [Nitya Narasimhan](https://github.com/nitya). Click the image for a larger version.
 
+This lesson was taught as part of the [Hello IoT series](https://youtube.com/playlist?list=PLmsFUfdnGr3xRts0TIwyaHyQuHaNQcb6-) from the [Microsoft Reactor](https://developer.microsoft.com/reactor/?WT.mc_id=academic-17441-jabenn). The lesson was taught as 2 videos - a 1 hour lesson, and a 1 hour office hour diving deeper into parts of the lesson and answering questions.
+
+[![Lesson 1: Introduction to IoT](https://img.youtube.com/vi/bVFfcYh6UBw/0.jpg)](https://youtu.be/bVFfcYh6UBw)
+
+[![Lesson 1: Introduction to IoT - Office hours](https://img.youtube.com/vi/YI772q5v3yI/0.jpg)](https://youtu.be/YI772q5v3yI)
+
+> 🎥 Click the images above to watch the videos
+
 ## Pre-lecture quiz
 
 [Pre-lecture quiz](https://brave-island-0b7c7f50f.azurestaticapps.net/quiz/1)

1-getting-started/lessons/2-deeper-dive/README.md

@@ -4,6 +4,14 @@
 
 > Sketchnote by [Nitya Narasimhan](https://github.com/nitya). Click the image for a larger version.
 
+This lesson was taught as part of the [Hello IoT series](https://youtube.com/playlist?list=PLmsFUfdnGr3xRts0TIwyaHyQuHaNQcb6-) from the [Microsoft Reactor](https://developer.microsoft.com/reactor/?WT.mc_id=academic-17441-jabenn). The lesson was taught as 2 videos - a 1 hour lesson, and a 1 hour office hour diving deeper into parts of the lesson and answering questions.
+
+[![Lesson 2: A deeper dive into IoT](https://img.youtube.com/vi/t0SySWw3z9M/0.jpg)](https://youtu.be/t0SySWw3z9M)
+
+[![Lesson 2: A deeper dive into IoT - Office hours](https://img.youtube.com/vi/tTZYf9EST1E/0.jpg)](https://youtu.be/tTZYf9EST1E)
+
+> 🎥 Click the images above to watch the videos
+
 ## Pre-lecture quiz
 
 [Pre-lecture quiz](https://brave-island-0b7c7f50f.azurestaticapps.net/quiz/3)

1-getting-started/lessons/3-sensors-and-actuators/README.md

@@ -4,6 +4,14 @@
 
 > Sketchnote by [Nitya Narasimhan](https://github.com/nitya). Click the image for a larger version.
 
+This lesson was taught as part of the [Hello IoT series](https://youtube.com/playlist?list=PLmsFUfdnGr3xRts0TIwyaHyQuHaNQcb6-) from the [Microsoft Reactor](https://developer.microsoft.com/reactor/?WT.mc_id=academic-17441-jabenn). The lesson was taught as 2 videos - a 1 hour lesson, and a 1 hour office hour diving deeper into parts of the lesson and answering questions.
+
+[![Lesson 3: Interact with the Physical World with Sensors and Actuators](https://img.youtube.com/vi/Lqalu1v6aF4/0.jpg)](https://youtu.be/Lqalu1v6aF4)
+
+[![Lesson 3: Interact with the Physical World with Sensors and Actuators - Office hours](https://img.youtube.com/vi/qR3ekcMlLWA/0.jpg)](https://youtu.be/qR3ekcMlLWA)
+
+> 🎥 Click the images above to watch the videos
+
 ## Pre-lecture quiz
 
 [Pre-lecture quiz](https://brave-island-0b7c7f50f.azurestaticapps.net/quiz/5)

1-getting-started/lessons/4-connect-internet/README.md

@@ -4,6 +4,14 @@
 
 > Sketchnote by [Nitya Narasimhan](https://github.com/nitya). Click the image for a larger version.
 
+This lesson was taught as part of the [Hello IoT series](https://youtube.com/playlist?list=PLmsFUfdnGr3xRts0TIwyaHyQuHaNQcb6-) from the [Microsoft Reactor](https://developer.microsoft.com/reactor/?WT.mc_id=academic-17441-jabenn). The lesson was taught as 2 videos - a 1 hour lesson, and a 1 hour office hour diving deeper into parts of the lesson and answering questions.
+
+[![Lesson 4: Connect your Device to the Internet](https://img.youtube.com/vi/O4dd172mZhs/0.jpg)](https://youtu.be/O4dd172mZhs)
+
+[![Lesson 4: Connect your Device to the Internet - Office hours](https://img.youtube.com/vi/j-cVCzRDE2Q/0.jpg)](https://youtu.be/j-cVCzRDE2Q)
+
+> 🎥 Click the images above to watch the videos
+
 ## Pre-lecture quiz
 
 [Pre-lecture quiz](https://brave-island-0b7c7f50f.azurestaticapps.net/quiz/7)

README.md

@@ -115,6 +115,10 @@ npm i
 npm run convert
 ```
 
+### Slides
+
+There are slide decks for some of the lessons in the [slides](./slides) folder.
+
 ## Help Wanted!
 
 Would you like to contribute a translation? Please read our [translation guidelines](TRANSLATIONS.md) and add input [to one of the translations issues](https://github.com/microsoft/IoT-For-Beginners/issues?q=is%3Aissue+is%3Aopen+label%3Atranslation). If you want to translate into a new language, please raise a new issue for tracking.