How to Search SPANN SSD Index???

[Coien-rr]

Is your feature request related to a problem? Please describe.
In GetStart, there are only SPANN build demo or SPANN build and search conbineed demo, but there is not any suggest how to search SPANN Index!!
Is it can use ./indexsearch to search SSD Index???

Describe the solution you'd like
Update README to add some demo

Describe alternatives you've considered
Add config.ini to config search set

Additional context