The INSTALL file still had old information about the "make
install-emacs" command which no longer exists. README was also giving
pointers on how to develop a real interface, (which is not the right
thing since README should be addressed to users, not coders).
So remove the stale and misplaced information, and instead add a new
"Running notmuch" section to the README describing how to run the
notmuch command-line interface and how to run the emacs interface.
Justin B Rye pointed out (in Debian bug #566282) that a user with mail
in mbox format can spend a lot of time investigating notmuch before
realizing that mbox is not supported. Head that off with a more
detailed mention in the README blurb.
As Keith pointed out, (with a humorous citation from Mark Twain),
the two uses of "very" added nothing to the description. Also,
"large collection of email" was repeated uselessly.
