adding sharer.js

[ellisonleao]

Contributing

(the same measurement rule as awesome-made-by-russians )

It's hard to calculate project popularity so we use stars as a measurement. It's not quite fair, but it is what we have here on Github.

If you want to add project to this list, please, make sure that:

• [x] The project was created by the developers born in Brazil
• [x] The project can't be just an personal, experimental or sample project
• [x] The project has more that 100 stars on Github
• [x] Put in alphabetical order
• [x] One repository per PR/contribution - avoid conflict and simplify review

If they do, feel free to make a PR! 😁

[felipefialho]

Almost there hahaha, can you put It in alphabetical order?

[ellisonleao]

done @felipefialho