CLOUDSTACK-4334. Documentation for object store.
DOC. Fix typo in Basic Zone Configuration.
DOC. Fix typo in Basic Zone Configuration.
Revert "DOC. Fix typo in Basic Zone Configuration."

This reverts commit e5b7dc55ba6727b10ffe8337810d13d8ffb26445.
DOC. Move misplaced paragraph from Secondary Storage section to Primary Storage section.