For this second task, sign up on bitbucket and create a repository.

* Upload your changes to this repository

    Useful commands
    ===============

    Adding more remote paths to your repo
    -------------------------------------
    hg config --local

    Compare your repo with the remote
    ---------------------------------
    hg incoming
    hg outgoing

    Send and receive changes from the remote
    ----------------------------------------
    hg pull
    hg push

If you pull new changes, you may often also want to update. You can do
both at once with

    hg pull --update
    hg pull -u

* Work with someone else, and both of you push to this repo. One of
  you will be unable to push. In order to be able to push, you need to
  merge or rebase. Remember that a rebase is a merge in which you
  delete one commit.

    Useful commands
    ===============
    
    Merge the files with another revision
    -------------------------------------
    hg merge

    Change what a commit is based on
    ---------------------------------
    hg rebase

    Mark files as being resolved or unresolved in a merge
    -----------------------------------------------------
    hg resolve --mark
    hg resolve --unmark

* After you resolve any conflicts, commit your merge and push it.