Incorrect example in the documentation

[amhamid]

There is an incorrect example in the documentation, that can cause users have difficulties in using it. See my pull request: #46

Details

1. Instead of this:

   iex> doc = ExHal.client
   ...> |> ExHal.Client.add_headers("User-Agent": "MyClient/1.0")
   ...> |> ExHal.Client.get("http://example.com/hal")
   %ExHal.Document{...}

==> You need to pattern match like this, so that your next example to follow_link will work fine:

{:ok, doc} = ExHal.client
...> |> ExHal.Client.add_headers("User-Agent": "MyClient/1.0")
...> |> ExHal.Client.get("http://example.com/hal")
%ExHal.Document{...}

2. Also here, instead of:

   iex> ExHal.follow_link("self")

==> Should be this:

iex> ExHal.follow_link(doc, "self")

[pezra]

Fixed by #46. Thanks.