How to use this extension on a Postgres using Docker ?

[sorasful]

Hello there ! First, thanks for creating this repository, it looks very promising and I can't wait to test it out.

I have some trouble understanding the steps to get going, especially when using Postgres in a Docker container. So I have some questions :

For now I'm using an official image (postgres:13.4-buster), is it possible to install the extension in the container ? Or do I need to create my own Dockerfile which builds from the official image but has some additional steps ?

If so, what are the steps required ? I'm sure i'm not the only one using Postgres in Docker, maybe it could be a good idea to put it in the README ? What do you think ?

Thanks !