Remove incorrect information about HEAD #77

Merged
merged 1 commit into from Mar 23, 2013
Commits on Mar 22, 2013
  1. Replace incorrect information about HEAD

    aschrab committed Mar 20, 2013
    Avoid stating that changing HEAD alters the working tree.  Although that
    is a common next step they are not actually the same action and can be
    done independently (e.g. `git reset` without `--hard`).
    
    Also state that committing while on a branch only alters the branch,
    without actually changing HEAD; HEAD only gets the new commit because it
    points to the branch rather than a specific commit.