SB3 Doc

[araffin]

Hello @jmacglashan ,

before I forget, could you please add a link to your website in the resource section of SB3?

https://stable-baselines3.readthedocs.io/en/master/guide/rl.html

Thanks =)

[jmacglashan]

I'd be happy to. I made a PR here

[araffin]

merci !