Fixing link hover colour problem.

[cognitive137]

Fixes #108

Description

I have modified the CSS rules. Previously, hovering the links in the footer changed the colour to make it illegible to read. Now, it has been fixed. A hovered link is now underlined.

Other information

Checklist

• My pull request has a descriptive title (not a vague title like Update index.md).
• My pull request targets the master branch of the repository.
• My commit messages follow best practices.
• I added tests for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no
  visible errors.

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[akmadian]

This change works for the license statement, but only the license statement so far. This change does not apply to the link to the github repo, the email address, or the phone number in the footer.

I would just go with keeping the same blue color, and adding an underline like you have now, but apply it to all a tags, and scope it to the footer component.

[cognitive137]

Hello @akmadian , done!

[akmadian]

Looks great! Thanks for working on this :)