DOCS-1016 document missing sharding shell helpers
DOCS-1016 copy edits & more for shard helpers
DOCS-1016 remove several commands which are internal and rarely used
DOCS-1016 document missing sharding shell helpers
DOCS-1016 copy edits & more for shard helpers
DOCS-1016 remove several commands which are internal and rarely used
DOCS-1016 minor cleanup
DOCS-1016 minor cleanup
fix merge conflicts