user-manual-metadata: Fixing parse error.

Fixed tag mismatch error for <chapter> tag.

Signed-off-by: Bill Traynor <wmat@alphatroop.com>
user-manual-metadata: Added missing section closing tag.

Added missing closing tag that was causing the doc not to
build.

Signed-off-by: Bill Traynor <wmat@alphatroop.com>