copy edit: typos, spelling

Signed-off-by: Sam Kleinman <samk@10gen.com>
Added distributed locks info about read/writes

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-1528: additional edits
DOCS-1990: fixing word clarity issue
DOCS-1985: clarifying example
sharding internals redirect
fix seealso directive

Signed-off-by: Sam Kleinman <samk@10gen.com>
minor: whitespace changes
Update object-id.txt

spelling

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-1975 fix include

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-1975 related: the tip was vague and confusing, rewrote to be more direct

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-1975: edits for cname tip
DOCS-1972: 3 member rep set image in wrong section
DOCS-1988 add missing word