Make slide deck insert to help raise awareness of TechCorridor.io

[benjaminoakes]

We should have a slide that can easily be inserted in people's talks that points people to our website, Twitter, Slack, etc.

From a conversation with @TheDarkTrumpet.

Acceptance Criteria

• Similar branding to the website. (See also: this presentation.)
• An easily-accessible format (PNG) so anyone can insert this in any presentation software.

(Other ideas?)