All these md files will be compiled into static html and showing under the documetn header in teaproject.org
Go to the website repo, https://github.com/tearust/website readme file explain how to compile
First, all images should be under /res folder. sub folders are ok. Images under other folder won't be converted.

the code above shows the image.
Suggest to put images in subfolders for easiler maintenance.
The absolute path in full http url is ok too. Example 
For those video or image with links, see example [](http://www.youtube.com/watch?v=6GYwrITSfJo "")
Use [//TEA]
All obsidian links are supported use [[]]