Add a link to our OWASP Project page and add a Donate link for cloud cost coverage

[commjoen]

…ponsorlink

What kind of changes does this PR include?

• Fixes or refactors
• A new challenge
• Additional documentation
• Something else : list sponsorship link and link to www-wrongsecrets OWASP Project page

Relations

Closes #685 and closes #689 .

References

We might want to rethink the following: how do we want to formulate the request for donation? Should we really put it on the home-page or tuck it away in the about menu?

Checklist:

• All the contributions made are solely the work of me and my co-authors
• I tested the changes in this PR (if applicable)
• I added unit tests to ensure my change works (when change in Java or on front-end code)
• The PR passes pre-commit hooks and automated tests

[commjoen]

this sis how it currently looks..