* [Bug Fix][Example] hgp-sl: More info for running
* change list to table
* change dataset summary in gxn and sagpool
* remove redundent
Co-authored-by: Tong He <hetong007@gmail.com>
* add sagpool example for pytorch backend
* polish sagpool example for pytorch backend
* [Example] SAGPool: use std variance
* [Example] SAGPool: change to std
* add sagpool example to index page
* add graph property prediction tag to sagpool
Co-authored-by: zhangtianqi <tianqizh@amazon.com>
Tianqi Zhang (张天启)