[2.0] Documentation issue: create InfluxQL datasource in Grafana requires Authorization header

[eaglejohn81]

InfluxDB 2.0.2.
Grafana >7.1

As described in #29372 creating an InfluxQL datasource in Grafana requires an "Authorization" header. This is not clear in the InfluxDB documentation on https://docs.influxdata.com/influxdb/v2.0/tools/grafana.

Basic authentication is not really required. You just need to add a header:

Authorization -> Token {token}