minor: fix typo for field/filed

Note: the descriptions for --collection and --db appear to have been
copied from mongorestore and are not accurate for mongoimport and
should be rewritten.

Signed-off-by: Sam Kleinman <samk@10gen.com>
minor typos, punctuation

Signed-off-by: Sam Kleinman <samk@10gen.com>
minor: typos

Signed-off-by: Sam Kleinman <samk@10gen.com>
Minor: spelling 'splittable'

Signed-off-by: Sam Kleinman <samk@10gen.com>
Fixed minor markup correction

Signed-off-by: Sam Kleinman <samk@10gen.com>
Minor typo on meta/build document

Signed-off-by: Sam Kleinman <samk@10gen.com>
GitHub is a proper noun

Signed-off-by: Sam Kleinman <samk@10gen.com>