Collaboration tweaks

[scpotter]

Is your feature request related to a problem? Please describe.
Minor stuff to make contributions easier

Describe the solution you'd like
The "assests" folder should probably be named "assets".
Forks are fragile because relative links are not used for images in README.md.

Describe alternatives you've considered
If these images aren't licensed under the project that's fine, otherwise consider hosting in the assets area. Note Wiki links must be static.

Additional context
This is a very inspiring project, especially the use of external components.