pipe alias

• a [[feature]]
  • [[markdown extension]]
  • [[pull]] [[pipe aliases]] [[bar renaming]]
  • [[s5bug]]
    • https://twitter.com/Fish_CTO/status/1462144240377499653 pull
    • https://twitter.com/Fish_CTO/status/1462151964322459654 pull
• [[push]] [[do]]
  • implement this and [[equals]]