[Feedback] Page: /docs/api/latest/hypertable/create_index

### Is it easy to find the information you need?

No

### Are the instructions clear?

None

### How could we improve the Tiger Data documentation site?

Maybe add a comment that it's possible to create unique indexes for new chunks with
```pqsl
CREATE UNIQUE INDEX uidx_name
ON ONLY hypertable_name (device, sensor, time DESC);
```