Merge lines.love

Dependencies

• [2] YIBW3BUG best prose across forks
• [3] NCW64JJD experiment: convert to Pijul
• [4] D4FEFHQC flesh out Readme
• [5] 6YWPSNUK new mirror
• [6] OV2SN2TW demote codeberg.org in the list of mirrors
• [7] SDVBZT66 tailor some copy to this fork
• [*] FS2ITYYH record a known issue

Change contents

• edit in README.md at line 109
  [4.1528]→[3.36:122](∅→∅),[4.1528]→[3.36:122](∅→∅)
  − * https://nest.pijul.com/akkartik/lines.love (using the Pijul version control system)
• resolve order conflict in README.md at line 109
  [2.220]

  [4.1528]
• edit in README.md at line 111
  [4.190]

  [4.190]
  + * https://nest.pijul.com/akkartik/lines-polygon-experiment (using the Pijul version control system)