public function setSectionHeader( $relevantTitle ) {
		$this->sectionHeader = $relevantTitle ?
			$this->context->msg( 'growthexperiments-help-panel-question-subject-template-with-title',
				$relevantTitle )->text() :
			$this->context->msg( 'growthexperiments-help-panel-question-subject-template' )
				->text();
		$lang = MediaWikiServices::getInstance()->getContentLanguage();
		$timestamp = $lang->timeanddate( wfTimestampNow(), false, false );
		$this->sectionHeaderUnique = $this->sectionHeader . ' ' . $this->context->msg( 'parentheses' )->
			rawParams( $timestamp );
	}