write up 'create your own personal logo' gci task

[co-robo]

Opened by @jayvdb at gitter/coala/gci

[jayvdb]

This is a fun beginner task to replace default avatar with a personal logo.

In Besut Kode we have a fairly good task description using behance.net for the 'raw', but deviantart allows more raw file types, and requiring setting up gravatar. And we have automated rules for checking the task is complete, and the logo is creative / not 'stolen'.

[jayvdb]

Here is the bahasa task, and the first batch of acceptable results. https://m.facebook.com/story.php?story_fbid=116068895749542&id=111696816186750

The one which is a photo is a bit iffy.

[jayvdb]

Would be helpful if they added a consistent 'gci'-style overlay in one corner, so everone can differentiate gci participants from other contributors

[jayvdb]

The bahasa task is published as https://github.com/BesutKode/sma2017-tugas/blob/master/tugas/design-1.md

Possibly this should be merged with #371