chore(release): v0.1.1

The changelog was generated with:

   mix changex.update --github Gazler/changex

chore(release): v0.1.0

The changelog was generated with:

   mix changex.update --github Gazler/changex

chore(release): v0.0.5

The changelog was generated with:

   mix changex.update --github gazler/changex

chore(release): v0.0.4

The changelog was generated with:

   mix changex.update

chore(release): v0.0.3

The changelog was generated with:

   mix changex.update

chore(release): v0.0.2

The changelog was generated with:

   mix changex.diff --format markdown

feat(Changex.Formatter.Terminal): use IO.ANSI.Docs for formatting

The output in the terminal now uses the calls in `IO.ANSI.Docs` - this
means that the output of the changelog looks very similar to the result
when viewing help inside of `iex`