scenarios for the on-disk representation

Dependencies

• [2] 7ZIFAEBR add missing doc

Change contents

• edit in representation.md at line 56
  [2.1779]
  +

  + # Scenarios considered in designing this representation

  +

  + * Capture history of changes.

  + - Though it is perhaps too fine-grained and noisy.

  +

  + * Merge changes from non-live forks to live ones.

  + - New files in repo can't hide changes in save dir, because filenames are

  + always disjoint between the two.

  + - This doesn't apply yet to live updates. Two forks of a single live app

  + will likely have unnecessary merge conflicts.

  +

  + * No special tools required to publish changes to others.

  + - Just move files from save dir to repo.

  +

  + # Scenarios I _would_ like to take into consideration in the future

  +

  + * Cleaner commits; it's clear what changed.

  + * merge changes between live forks.