Updated Viewing App when on OSX

Added section to show how to get IP address and view running python app if the user is using boot2docker on OSX

Docker-DCO-1.1-Signed-off-by: Richard Harvey <richard@squarecows.com> (github: richarvey)

Docker-DCO-1.1-Signed-off-by: Richard Harvey <richard@squarecows.com> (github: SvenDowideit)
fixup small formatting

Docker-DCO-1.1-Signed-off-by: SvenDowideit <SvenDowideit@home.org.au> (github: SvenDowideit)
Merge pull request #6462 from SvenDowideit/pr_out_fixup_small_formatting

fixup small formatting