Fix the 'GitLab Version Check' links at /handbook/resellers/ and /handbook/sales/.
This updates the GitLab Version Check links from https://about.gitlab.com/handbook/resellers/ and https://about.gitlab.com/handbook/sales/.
Note:
-
/handbook/sales-process/version_check/
(on the Reseller page) leads to a 301 Moved Permanently redirect and the new URL. -
/handbook/sales-process/version_check
(on the Sales home page) leads to a 404 Not Found error message.
The only difference is the trailing slash. Thus, we should keep trailing slashes in mind when adding or editing forwarders.