Update autoscan.md

[rbax82]

correcting plex url

Please describe the purpose of this Pull Request.

For new Sandbox app/role documentation, please confirm you have completed the following tasks:

• [] App documentation page created
• [] markdownlint reports no errors on edited page(s) - use https://dlaa.me/markdownlint/ if your IDE does not have this built in
• [] Reference added in docs/sandbox/index.md
• [] Reference added in mkdocs.yml nav menu

[maximuskowalski]

Before that code block the text explaining the sample says:

The generated config file will look something like this:

The generated config will use https... domain

It should be no problem to reach via https:// and additionally this is how you would reach a plex instance that exists on another system.

[saltydk]

The suggested change is also incorrect since it removed the comment.