Fix link on end-to-end quick start guide doc

What does this MR do?

Nothing more than fixing a doc's link to point to what it describes.

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• Documentation created/updated or follow-up review issue created
• [-] Code review guidelines
• [-] Merge request performance guidelines
• [-] Style guides
• [-] Database guides
• [-] Separation of EE specific content