Document how to send timbre logging to slf4j / dialog

[ieugen]

I've asked this on clojurians slack, on #timbre just now.

We have an issue that I believe is caused by some libraries logging with timbre (not confirmed yet).

In our app if we load dialog ns first, logging works fine.
If we load another ns that uses tools-logging (which should work over slf4j / dialog) then logging from that ns does not appear.

Just started investigating this.

https://clojurians.slack.com/archives/C1J6MQC2H/p1686296806175059

[ieugen]

So it seems our issue is not related to timbre.

We use the [clojure.tools.logging] API .

Adding a require to this [clojure.tools.logging] in the file solves our issue.
Just requiring dialog.logger does not properly initialize the logging infrastructure.