Updating the videos from people about hackrf (#1918)

The latest series from sasquash looks promising to engage beginners :) also will do some tracking with grabify to check engagement

README.md

@@ -13,11 +13,11 @@ This is a fork of the [Havoc](https://github.com/furrtek/portapack-havoc/) firmw
 
 # What is this?
 
-If you are new to *HackRF+PortaPack+Mayhem*, check this video:
+If you are new to *HackRF+PortaPack+Mayhem*, check these:
 
-[![Beginner's Guide To The HackRF & Portapak With Mayhem](https://img.youtube.com/vi/H-bqdWfbhpg/0.jpg)](https://www.youtube.com/watch?v=H-bqdWfbhpg)
+[<img alt="HackRF 101 : Everything You Need to Know to Get Started!" src="https://img.youtube.com/vi/xGR_PMD9LeU/maxresdefault.jpg" width="512">](https://grabify.link/C0J6ZR)
 
-For people familiar with the [Flipper Zero](https://github.com/flipperdevices/flipperzero-firmware), this one might be interesting:<br>[What is the HackRF One Portapack H2+?](https://www.youtube.com/watch?v=alrFbY5vxt4)
+[<img alt="Beginner's Guide To The HackRF & Portapak With Mayhem" src="https://img.youtube.com/vi/H-bqdWfbhpg/maxresdefault.jpg" width="254">](https://grabify.link/5MU2VH) [<img alt="What is the HackRF One Portapack H2+?" src="https://img.youtube.com/vi/alrFbY5vxt4/maxresdefault.jpg" width="254">](https://grabify.link/9UZGEW)
 
 # Frequently Asked Questions