Quick doc edit for clarity.
Quick doc edit for clarity.

This closes #170

Signed-off-by: Alexander Shorin <287dfd97d2274fe201ae7191a244ba25e475e13a@apache.org>

cloudant/couchdb-documentation,kxepal/couchdb-documentation,robertkowalski/couch-doc-test,cloudant/couchdb-documentation,robertkowalski/couchdb-documentation,robertkowalski/couchdb-documentation,kxepal/couchdb-documentation,robertkowalski/couch-doc-test,andywenk/couchdb-documentation,micah/couchdb-documentation,KimStebel/couchdb-documentation,micah/couchdb-documentation,robertkowalski/couch-doc-test,andywenk/couchdb-documentation,andywenk/couchdb-documentation,KimStebel/couchdb-documentation,KimStebel/couchdb-documentation,micah/couchdb-documentation,kxepal/couchdb-documentation,robertkowalski/couchdb-documentation