Correction to the pip install command (#6198)
Correction to the pip install command (#6198)

The current `pip install` command incorrectly references `google-cloud-datastore`, this PR is correcting the `pip install` instructions to correctly reference `google-cloud-videointelligence`
dhermes/google-cloud-python,tseaver/google-cloud-python,GoogleCloudPlatform/gcloud-python,jonparrott/gcloud-python,jonparrott/google-cloud-python,tswast/google-cloud-python,tseaver/google-cloud-python,jonparrott/google-cloud-python,tswast/google-cloud-python,tseaver/google-cloud-python,googleapis/google-cloud-python,googleapis/google-cloud-python,tswast/google-cloud-python,jonparrott/gcloud-python,dhermes/gcloud-python,dhermes/google-cloud-python,GoogleCloudPlatform/gcloud-python,dhermes/google-cloud-python,dhermes/gcloud-python