fix(docs): Fix incorrect label name (#12256)

* fix(docs): Fix incorrect label name

* Fix corresponding linked text

Author: Leko

docs/contributing/docs-contributions.md

@@ -16,7 +16,7 @@ On this page:
 
 ## Top priorities
 
-Check the GitHub repo for issues labeled with ["documentation" and "good first issue"](https://github.com/gatsbyjs/gatsby/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3A%22type%3A+documentation%22+label%3A%22good+first+issue%22) for your first time contributing to Gatsby, or ["documentation" and "status: help wanted"](https://github.com/gatsbyjs/gatsby/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3A%22type%3A+documentation%22+label%3A%22status%3A+help+wanted%22) to see all documentation issues that are ready for community help. Once you start a PR to address one of these issues, you can remove the "help wanted" label.
+Check the GitHub repo for issues labeled with ["documentation" and "good first issue"](https://github.com/gatsbyjs/gatsby/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3A%22type%3A+documentation%22+label%3A%22good+first+issue%22) for your first time contributing to Gatsby, or ["documentation" and "help wanted"](https://github.com/gatsbyjs/gatsby/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3A%22type%3A+documentation%22+label%3A%22help+wanted%22) to see all documentation issues that are ready for community help. Once you start a PR to address one of these issues, you can remove the "help wanted" label.
 
 ## Options for contributing to the Gatsby docs