fix a link

Dependencies

• [2] HQG4RFCO tweak Readme
• [3] D4FEFHQC flesh out Readme
• [4] ZLEPKWDJ fork: capture frontend for a note-taking system
• [*] FS2ITYYH record a known issue

Change contents

• replacement in README.md at line 6
  [2.94]→[2.94:173](∅→∅)
  − tree. Once it's saved, use [pensieve.love](___) to browse that directory tree.
  [2.94]

  [3.18]
  + tree. Once it's saved, use [pensieve.love](https://git.sr.ht/~akkartik/pensieve.love)

  + to browse that directory tree.