- wrap lines in the java and golang getting started
- make the "test on the host" step in the Java getting started "optional". This
allows users to try the tutorial without requiring them to set up a functional
Java environment on their host. (i'm planning on making similar changes in
the other language guides).
- use `docker <object> <action>` in some examples (but mention the corresponding
shorthands); this may help understand the relation between the `<action>` and
what kind of `<object>` we're acting on (tag an _image_, remove an _image_).
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Fixed line numbers in example, as two lines 57 were shown and it was not obvious which line needs to be changed.
Removed profile argument from example outputs, as the corresponding Dockerfile examples for the test image do not have it.