Update continuous-integration.md

[Mohiit70]

Describe your changes

Fixed broken link

Related issue number or link (ex: resolves #issue-number)

https://glossary.cncf.io/hi/continuous-integration/

Checklist before opening this PR (put x in the checkboxes)

• [x] This PR does not contain plagiarism
  • don’t copy other people’s work unless you are quoting and contributing it to them.
• [x] I have signed off on all commits
  • signing off (ex: git commit -s) is to affirm that commits comply DCO. If you are working locally, you could add an alias to your gitconfig by running git config --global alias.ci "commit -s".