Docs inconsistency with code 

docs list a Health endpoint for 
`import nomad

my_nomad = nomad.Nomad(host='192.168.33.10')

r = my_nomad.agent.get_health()`
https://python-nomad.readthedocs.io/en/latest/api/agent/

code does not have this function:
https://github.com/jrxFive/python-nomad/blob/master/nomad/api/agent.py