Add Video Intelligence to README (#3628)
Add Video Intelligence to README (#3628)

* Add Video Intelligence to README

Add Video Intelligence to list of APIs supported at Beta.  Link to PyPi and package README.

* Adding "Google" to "Cloud Video Intellegence" link.

tseaver/google-cloud-python,tswast/google-cloud-python,jonparrott/google-cloud-python,tseaver/google-cloud-python,calpeyser/google-cloud-python,dhermes/gcloud-python,calpeyser/google-cloud-python,dhermes/google-cloud-python,jonparrott/gcloud-python,tswast/google-cloud-python,jonparrott/google-cloud-python,dhermes/gcloud-python,tartavull/google-cloud-python,tseaver/gcloud-python,tseaver/google-cloud-python,tswast/google-cloud-python,googleapis/google-cloud-python,GoogleCloudPlatform/gcloud-python,GoogleCloudPlatform/gcloud-python,dhermes/google-cloud-python,googleapis/google-cloud-python,tartavull/google-cloud-python,dhermes/google-cloud-python,tseaver/gcloud-python,jonparrott/gcloud-python