public function addTooltipScripts() {
		if ( ! is_admin() ) {
			$assets = new Assets( 'pressbooks', 'plugin' );
			wp_enqueue_script( 'glossary-tooltip', $assets->getPath( 'scripts/glossary-tooltip.js' ), false, null, true );
			wp_enqueue_style( 'glossary-tooltip', $assets->getPath( 'styles/glossary-tooltip.css' ), false, null );
		}
	}