Meta elements (fixed)

For the given setting on this wiki:

$smtgTagsStrings = array(
	'og:site_name' => 'Semantic MediaWiki - Sandbox',
	'og:image' => 'http://sandbox.semantic-mediawiki.org/w/SMWSandBoxLogo.png',
	'og:image:type' => 'image/png',
	'og:image:width' => '142',
	'og:image:height' => '142'
	);

No annotations needed since they content of the meta elements cannot be changed.