use of base64 images

[theAbdoSabbagh]

I think GitHub should allow users to use base64 data to put images. It can be quite useful for when we don't want to upload the image to a server and use the link, not to mention loading the image directly from the base64 data can be faster.

[ace-dent]

I have a README.md with hundreds of images, each ~100bytes. Load times seem very slow. Ideally images would be embedded to reduce HTTP transfer overheads.