Incorrect description of `mem_cache_size`

The description of `mem_cache_size` is as follows:
https://developer.konghq.com/gateway/configuration/#mem-cache-size
> Size of each of the two shared memory caches for traditional mode database entities and runtime data, kong_core_cache and kong_cache.

However, there is no such thing as `kong_core_cache` in the source code.
The correct term is `kong.core_cache`.
https://github.com/search?q=repo%3AKong%2Fkong%20%22kong.core_cache%22&type=code

This is also documented in past release notes as follows:
https://github.com/Kong/kong/blob/master/CHANGELOG-OLD.md?plain=1#L2449
> The internal cache was split into two independent segments, `kong.core_cache` and `kong.cache`.

#### Conclusion:
Incorrect:
> Size of each of the two shared memory caches for traditional mode database entities and runtime data, `kong_core_cache` and `kong_cache`.

Correct (Revised description):
> Size of each of the two shared memory caches for traditional mode database entities and runtime data, `kong.core_cache` and `kong.cache`.

Open the configuration page linked in the issue and locate the `mem_cache_size` description. Compare it with the `CHANGELOG-OLD.md` entry cited, update the cache names to `kong.core_cache` and `kong.cache`, and verify the published description uses the revised wording.

Written by the indexing model from the issue text.