Broken references in Clipboard API and events

[dontcallmedom-bot]

While crawling Clipboard API and events, the following links to other specifications were detected as pointing to non-existing anchors, which should be fixed:

• https://html.spec.whatwg.org/multipage/interaction.html#drag-data-item-kind
• https://html.spec.whatwg.org/multipage/interaction.html#drag-data-item-type-string

_{This issue was detected and reported semi-automatically by Strudy based on data collected in webref.}