Fixed the link for: types of contributions

[khitab-incubyte]

Why:

Corrected the link: types of contributions which lead no where.
Replaced it with: https://github.com/github/docs/blob/main/contributing/types-of-contributions.md

Found the correct link here: https://github.com/github/docs/blob/main/CONTRIBUTING.md

What's being changed:

Check off the following:

• I have reviewed my changes in staging (look for "Automatically generated comment" and click Modified to view your latest changes).
• For content changes, I have completed the self-review checklist.

Writer impact (This section is for GitHub staff members only):

• This pull request impacts the contribution experience
  • I have added the 'writer impact' label
  • I have added a description and/or a video demo of the changes below (e.g. a "before and after video")

[welcome]

Thanks for opening this pull request! A GitHub docs team member should be by to give feedback soon. In the meantime, please check out the contributing guidelines.

[ramyaparimi]

@khitab-incubyte
Thanks so much for opening a PR with this fix! I'll update the branch and get this merged once tests are passing 🍏

[github-actions]

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