`add_process` most basic example doesn't work

[alahiff]

Following https://docs.simvue.io/tracking-monitoring/launching_processes/ using the client from PyPI:

run.add_process("my_process", "echo", "Hello World!")

gives:

FileNotFoundError: [Errno 2] No such file or directory: 'None'

For some reason add_process always replaces the executable with None, at least it does for me.

[alahiff]

It seems like you have to do the following for it to work:

run.add_process("my_process", "Hello World!", executable="echo")

[kzscisoft]

Addressed in v1.0.1-rc branch