Twitter banner

[KadeMorton]

I confirm:

• [x] I've read the contributing guidelines and the code of conduct
• [x] I've checked that this issue applies to this repo
• [x] I've checked the existing issues, no one else has reported this
• [x] I've got a clear and descriptive title

Here is our Twitter: https://twitter.com/aletheia_f

The image is a CC image, not specific to Aletheia and is at a poor resolution. If anyone could create an Aletheia specific banner it would be much appreciated. Images for the logo can be found in the logo repo.