Fix some markdown syntax that github had trouble parsing. Change-Id: I00f4409b7c6e12bb0cd6944a488fde3f6ef4054c Reviewed-on: https://chromium-review.googlesource.com/278055 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>