message: trigger docs rebuild
diff: </head>
  <body class="text-center">
  -<a href="https://github.com/bpatrik/pigallery2"><img style="position: absolute; top: 0; left: 0; border: 0;" src="https://s3.amazonaws.com/github/ribbons/forkme_left_white_ffffff.png" alt="Fork me on GitHub"></a>
  +<a href="https://github.com/bpatrik/pigallery2"><img style="position: absolute; top: 0; left: 0; border: 0;"
  + src="https://s3.amazonaws.com/github/ribbons/forkme_left_white_ffffff.png"
  + alt="Fork me on GitHub"></a>
  <div class="cover-container d-flex w-100 h-100 p-3 mx-auto flex-column ">
  <header class="masthead">
  <div class="inner">
  