Add sponsor logos to Supporters page

[corinnepw]

Add Twilio logo (attached below) to girldevelopit.com/supporters Link to: https://www.twilio.org/

Add Capital One logo Link to: https://www.capitaloneinvestingforgood.com/

Add Infosys Foundation logo Link to: http://www.infosys.org/infosys-foundation-usa/

Add Cars.com logo Link to: https://www.cars.com/

Add Turing School logo Link to: https://www.turing.io/

[dnahol]

Fixed. Pull request coming up.

[kstack7]

Wonderful! Thank you @dnahol for the work and the added screenshot :) We appreciate it!