RFR: Extend documentation regarding logging [v2]

[Johan Sjölén]

> Hi!
> 
> Here's some suggested improvements to the logging documentation. It's currently just a draft, but please feel welcome to come with any suggestions.

Johan Sjölén has updated the pull request incrementally with one additional commit since the last revision:

  Fix review comments and also add some more content

-------------

Changes:
  - all: https://git.openjdk.org/guide/pull/91/files
  - new: https://git.openjdk.org/guide/pull/91/files/4069f8f1..c76cb03a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=guide&pr=91&range=01
 - incr: https://webrevs.openjdk.org/?repo=guide&pr=91&range=00-01

  Stats: 33 lines in 1 file changed: 24 ins; 1 del; 8 mod
  Patch: https://git.openjdk.org/guide/pull/91.diff
  Fetch: git fetch https://git.openjdk.org/guide pull/91/head:pull/91

PR: https://git.openjdk.org/guide/pull/91