Convert iframe YouTube embeds to mkdocs-video syntax (#85)

as it's less verbose and is already used in other places on the wiki as well

docs/Modding/guides/tools/MDLModding.md

@@ -55,7 +55,7 @@ The workflow for editing a model is as follows:
 This is a short video guide on MDL Editing, there are some discrepancies between the video and this guide but the general workflow is the same.
 Its relatively quick but shows the process quite well.
 
-<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/mZg5AlWvXZs" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+![type:video](https://www.youtube.com/embed/mZg5AlWvXZs)
 
 ## Blender
 

docs/Modding/mapping/info-dump.md

@@ -23,22 +23,22 @@ https://github.com/snake-biscuits/bsp_tool
 
 Netradiant Custom Tutorial - Part 2:
 
-<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/JZO8H4rBqtA" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+![type:video](https://www.youtube.com/embed/JZO8H4rBqtA)
 
 How titanfall custom map:
 
-<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/gmNzc5Go2ow" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+![type:video](https://www.youtube.com/embed/gmNzc5Go2ow)
 
 ### How to make corners correctly
 
 Improper corners can cause the player to get stuck
 
 ![](../../_static/map-corners.png)
 
-<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/mwvxonuCm8U" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+![type:video](https://www.youtube.com/embed/mwvxonuCm8U)
 
 Sample clip:
 
-<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/zgWDme7Y6oI" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+![type:video](https://www.youtube.com/embed/zgWDme7Y6oI)
 
 Sample map for corners can be download [here](../../_static/corner_test_map.map).