Typo in pip command for PowerBI package

[Ronan TREILLET]

https://docs.microsoft.com/en-us/python/api/overview/azure/power-bi?view=azure-python

pip install azure-mgmt-powerblembedded

instead of

pip install azure-mgmt-powerbiembedded

[Carolyn Olsen]

I submitted pull request 357 to fix this.

[Marsh Macy]

Confirmed fix has been published, closing. Thanks @Gronan and @CarolynOlsen!