Add comments and docstring for the send method
Add comments and docstring for the send method

Add docstring explaining the basics of the send method.

linuxipho/mycroft-core,linuxipho/mycroft-core,Dark5ide/mycroft-core,Dark5ide/mycroft-core,MycroftAI/mycroft-core,MycroftAI/mycroft-core,forslund/mycroft-core,forslund/mycroft-core