Add a name or description for each language icon

[fcpimenta]

This issue is related to the vim-bootstrap website.

Description

When selecting the language, I think it is good to present icons, including the language name they represent. Some icons are not very known. This will improve the accessibility.

For example (in the Vim Boostrap page):

On ohmyz.sh page:

Best regards,

Fernando Pimenta

[cizordj]

Maybe we could show the language name when the mouse is hovering the icon or change all the icons completely.