Add auth context to readme (#1004)
Add auth context to readme (#1004)

Automatic merge from submit-queue

Add auth context to readme

**What this PR does / why we need it**:

Add auth context / it is not there

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:
```release-note
NONE
```
sebrandon1/istio,sebrandon1/istio,sebrandon1/istio,sebrandon1/istio