Update CONTRIBUTING.md

[MalikMAlna]

Removing the word "of" from the hyperlink text that goes to the issues tab. It doesn't need to be there.

Closes #1231

[github-actions[bot]]

:x: pre-commit failed. Please run pre-commit run --all-files locally and commit the changes. Find more information in the repository's CONTRIBUTING.md

[MalikMAlna]

Do I really need to run pre-commit run --all-files locally when I'm changing one word in a markdown file?

I'll do it if it's necessary, but it just seems needlessly tedious in this scenario.

[MalikMAlna]

Meh, nevermind, I'm gonna install and run it. I'm probably gonna need it later anyways.