Updated the build/tmp/log directory description to mention that running
a build does not necessarily mean a log directory is created. Also,
ran a spell check and found a typo.
Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
(From yocto-docs rev: c602919a1f188a4dff23f965bcc52b635f9a92ae)
Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>