Documentation points to an out of date directory

[jlperla]

• In http://www.econforge.org/Dolo.jl/latest/modeling_language.html#Example-1
  it says execute

model = yaml_import(`examples\global_models\example.yaml`)

but it should really be

model = yaml_import("examples/global/neoclassical.yaml")

or something like that.

• Also, the page talks about examples\models\rbc.yaml which does not exist.
• I would make sure all paths use forward slashes rather than backslashes. They work on all operating systems, and you don't have the issue of copy-past requiring escaping the backslashes
• Finally, it may be work pointing out that in the REPL you can use the ; to enter shell mode and then go to the directory with

cd $(Pkg.dir("Dolo"))