Docs: Fix all broken anchors in charts documentation
This MR attempts to correct all the broken link anchors that were found by the docs team internal anchor test.
Related to: https://gitlab.com/gitlab-com/gitlab-docs/issues/330
This MR attempts to correct all the broken link anchors that were found by the docs team internal anchor test.
Related to: https://gitlab.com/gitlab-com/gitlab-docs/issues/330