History of html 2 changes

In src/history.ts, lines 103–172 on 44bfd5adfc9a3fd6a39086ab97363e33f29513a120b05c55a7f5641cd4b5d479. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 103,172:src/history.ts.