Squashed 'site_scons/' changes from 365e409..80fb464

80fb464 Fix README typos

git-subtree-dir: site_scons
git-subtree-split: 80fb464a387f232a4726753e5e352bb9d5e04534
Merge commit '7526d5f61ebbd06a33be856cd8a872b6eb5ac905'