Merge branch 'docs/fix-anchor-landing-page' into 'master'

Anchor link was incorrect

See merge request gitlab-org/gitlab-ce!24922

doc/README.md

@@ -336,7 +336,7 @@ Viewing [Container Scanning reports](https://docs.gitlab.com/ee/user/project/mer
 There are two ways to use GitLab:
 - [GitLab self-managed](#gitlab-self-managed): Install, administer, and maintain your own GitLab instance.
-- [GitLab.com](#gitlab-com): GitLab's SaaS offering. You don't need to install anything to use GitLab.com,
+- [GitLab.com](#gitlabcom): GitLab's SaaS offering. You don't need to install anything to use GitLab.com,
   you only need to [sign up](https://gitlab.com/users/sign_in) and start using GitLab straight away.
 The following sections outline tiers and features within GitLab self-managed and GitLab.com.