Add branding / logos section

[mppfiles]

It would be VERY nice to have some page with the "official" Javalite logos, including some variations (white/gray/transparent background, just the hand/with 'Javalite' caption, different formats, etc.) and maybe some usage guidelines (something like Spring, but way more relaxed 😉, just if it makes sense).

Help spread the word! 📢 👍🏽