MD Settings: elide custom-added spellcheck words

R=michaelpg@chromium.org
BUG=622993
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2518173002
Cr-Commit-Position: refs/heads/master@{#433975}
1 file changed