error[markdown-link-first]: the first match of the given pattern must be a link
  --> input.md
   |
15 | This is the abstract for the TNIP, which extends TNIP-1234.
   |
   = info: the pattern in question: `(?i)(?:tnip)-[0-9]+`
error[markdown-link-first]: the first match of the given pattern must be a link
  --> input.md
   |
17 | This is also the abstract for the TNIP.
   |
   = info: the pattern in question: `(?i)(?:tnip)-[0-9]+`