Mention that Codidact is open source at https://codidact.com/contact

[matkoniecz]

Is your feature request related to a problem? Please describe.
AFAIK Codidact was supposed to be an open source project, but there is no info about this at https://codidact.com/contact - it looks like something put by company with millions in funding

Describe the solution you'd like
Put link to repo at https://codidact.com/contact

Describe alternatives you've considered
Do nothing if GitHub repositories are deliberately hidden and you prefer to get issue reports via Atlassian

Additional context
Originally reported at codidact/landing-page#81

[matkoniecz]

BTW, I had problem to find this repo. See codidact/landing-page#82

[cellio]

Thanks; this is a good point, and yes, Codidact is open-source.