Fix attribution links in print

Dependencies

• [2] UH3YXOLF Start the slide deck

Change contents

• replacement in css/custom.css at line 59
  [2.1166]→[2.1166:1167](∅→∅)
  − }
  [2.1166]
  + }

  +

  + .print-pdf .reveal section .attribution {

  + bottom: -50px;

  + position: absolute;

  + }