add a link

Dependencies

• [2] EZHO4TSW new file-system format for freewheeling apps
• [3] D4FEFHQC flesh out Readme
• [4] 2DVVKKVA flesh out Readme
• [*] FS2ITYYH record a known issue

Change contents

• replacement in README.md at line 32
  [2.2958]→[2.2958:3029](∅→∅)
  − * move all files with a numeric prefix from the save dir to the repo
  [2.2958]

  [3.504]
  + * move all files with a numeric prefix from the [save directory](https://love2d.org/wiki/love.filesystem.getSaveDirectory)

  + to the repo.