'What is TenFour'

[Erioldoesdesign]

Adding in the Methodology to the Open Design website there is a need for a 'What is TenFour' document. Much like the [Simple.org slide deck] (https://www.dropbox.com/s/sah9y0ezqb28hde/Simple%20App%20Overview%20-%20001%20(2-24-2019).pptx?dl=0#)

• [x] Information in an info issue in the TenFour Repo.
• [x] A slide deck that can be used in events.

[Erioldoesdesign]

Needs to live in: https://github.com/ushahidi/tenfour/blob/develop/README.md