Error in Neurodocker tutorial - docker version command

[SJaffa]

nipype_tutorial/notebooks/introduction_neurodocker.ipynb

Line 25 in f11c9c7

" docker run --rm kaczmarj/neurodocker:v0.4.0 generate [docker|singularity] --help\n",

This line gives an error:

Unable to find image 'kaczmarj/neurodocker:v0.4.0' locally docker: Error response from daemon: manifest for kaczmarj/neurodocker:v0.4.0 not found: manifest unknown: manifest unknown.

I think it should be
docker run --rm kaczmarj/neurodocker:0.4.0 generate [docker|singularity] --help
removing the v before the version number.