Broken image in the pos-cli section of the developer guide

[nemvalid]

https://documentation.platformos.com/developer-guide/pos-cli/effective-development-using-pos-cli#concurrently

This was an external link and the target has moved to a new url.

I'm not sure if it's a good idea to directly link external images, but I think this is the right url: https://raw.githubusercontent.com/open-cli-tools/concurrently/main/docs/demo.gif