Ununified document addresses

[youngledo]

I found two document addresses, what I can see directly is https://logging.apache.org/log4j/2.x/index.html, What's not easy to find is
https://logging.apache.org/log4j/2.12.x/, But I have found that the two complement each other. Would you consider merging them?

And the latter is in some ways more detailed, I prefer the latter.

[ppkarwasz]

@youngledo,

The /log4j/2.12.x website contains the documentation of the 2.12.x release. That release was a (very short-lived) branch with security-only fixes, that appeared in December 2021 and was discontinued on December 29th, 2021.

I am planning to remove the /log4j/2.3.x and /log4j/2.12.x websites in a couple of weeks (see this dev@logging thread), but if you wish to move some content from that page to /log4j/2.x, feel free to open a PR. There is an [Edit] button on each page of the new website, which points you to the correct AsciiDoc source document.