annotate .hgignore @ 1259:0daf56a2032d stable

docs: update sharing guide based (mostly) on marmoute's review

- don't claim certain scenarios are more/less common, just
  simple/advanced
- mention code review as a multiple-developer scenario (not described
  in detail yet!)
- suggest "hg config --edit --local" instead of "cat >> .hg/hgrc"
- use -q less often (and show resulting output)
- edit some section headers to be consistent with user guide
  (example numbers; "amend" instead of "amending")

(These are just the small changes; big changes are yet to come.)

syntax: re
/figures/[^/]+\.png$
^docs/build/
^docs/html/
^html/
\.pyc$
~$
\.swp$
\.orig$
\.rej$
\.err$
^tests/easy_run.sh$
^build/
^MANIFEST$
^docs/tutorials/.*\.rst$
\.ico$