Begin refactoring content for FB 42563.
Merge branch 'content-review' into FB42563

Conflicts:
	source/includes/api/_replication.md
Continue refactoring content.
Continue restructuring.
Merge branch 'content-review' into FB42563

Conflicts:
	source/index.md
Fold changes into new structure.
Complete restructuring tasks.
Merge branch 'content-review' into FB42563