Fix Cargo repo again

Dependencies

• [2] LYRVL33U Bump version, add CHANGELOG
• [3] QPNLOXNJ Fix cargo email attributions
• [4] ENARAOAB Tweak Cargo manifest for gemini
• [5] 5II6T7YE Add gemini library
• [6] WJROXZ3C Add note to README thanking mgattozzi

Change contents

• replacement in gemini/Cargo.toml at line 10
  [3.294]→[3.294:360](∅→∅)
  − repository = "https://nest.pijul.com/matthewess/gemini-projects"
  [3.294]

  [2.0]
  + repository = "https://nest.pijul.com/mat/gemini-projects"