clarify what "large files" means

Dependencies

• [2] MLG2OGU7 things seem to feel snappier now
• [3] IDGP4BJZ new known issue with drawings
• [4] 34TC5SYK record another known issue I don't know how to fix yet
• [*] FS2ITYYH record a known issue

Change contents

• replacement in README.md at line 72
  [2.95]→[2.95:109](∅→∅)
  − other ways.
  [2.95]

  [3.276]
  + other ways. lines.love works well in all circumstances with files under

  + 50KB.