Add doc examples for creating FixedSizeListArray

[alamb]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.
I wanted to quickly create an example for FixedSizeListArray but did not find any quickly on docs.rs:
https://docs.rs/arrow/9.1.0/arrow/array/struct.FixedSizeListArray.html

Describe the solution you'd like
Add a doc example, like XXX for FixedSizeListArray, perhaps by adapting an exsisting test

Additional context
Came up while I was reviewing #1379 and trying to file follow on tickets

[HaoYang670]

I can work on this !