Common HTML template for tab
function tabHtml(tabTitle, codeContent, codeLang) {
  return `<ngb-tab title="${escape(tabTitle)}">
      <ng-template ngbTabContent>
        <pre class="language-${codeLang}"><code class="language-${codeLang}">${escapeBraces(highlight(codeContent, codeLang))}</code></pre>
      </ng-template>
    </ngb-tab>`;
}