Outdated and duplicate information in memtx section

[rindblack15]

Related dev. issue(s):

Product: Tarantool
Since: 2.6.1
Audience/target:
Root document: https://www.tarantool.io/en/doc/latest/book/box/engines/memtx/
SME: @ Mons, @ alyapunov

Details

After updating the transaction section (https://www.tarantool.io/en/doc/latest/book/box/atomic/), some information in the memtx section is somewhat out of date and needs updating in terms of the memory model (and in general information is duplicated, it is worth considering this and possibly using links to material from another page).

Definition of done

• The information about memtx has been updated.