Update examples/formbot/README.md
Update examples/formbot/README.md

Co-Authored-By: JustinaPetr <5de0619140d28f0ecb89fe66fe8a02d0f6e37f73@rasa.com>
RasaHQ/rasa_nlu,RasaHQ/rasa_core,RasaHQ/rasa_nlu,RasaHQ/rasa_core,RasaHQ/rasa_core,RasaHQ/rasa_nlu