Wiki Images Dir

[Metallicow]

re: micropython/micropython#652 (comment)

I have a few images relating to a tut and wiki images need a place to go.
Hence a wiki_images dir in this or maybe another repo, so that users can upload images for wiki use without cluttering up the main repo.

[dpgeorge]

I agree that we need a place for images, but neither this nor the main source repo are the right place. We either need to make a wiki repo, or replace gollum with a wiki software that allows uploading of images directly to the wiki....