\subsection{Links}

\begin{frame}[t]{Links}
  \hfill
  \qrcode[height=6em]{\LectureHomepageLink}\\
  \vspace*{-0.5em}
  \textbf{Homepage:}
  \begin{itemize}
    \item
      Exercise sheets
    \item
      Lectures
    \item
      Materials
  \end{itemize}
  \begin{center}
    Link to
    \color{MainA}\href{\LectureHomepageLink}{\LectureHomepageLabel}
  \end{center}
\end{frame}