Document Shared Runners Cost Factors
What does this MR do?
Document Shared Runners Cost Factors.
They are available for gitlab.com
admins only.
Screenshots
Does this MR meet the acceptance criteria?
Conformity
- [-] Changelog entry
-
Documentation (if required) - [-] Code review guidelines
- [-] Merge request performance guidelines
- [-] Style guides
- [-] Database guides
- [-] Separation of EE specific content
Availability and Testing
N/A - docs-only change
Security
N/A - docs-only change
Related to #218434 (closed)