The exiting documentation comment for `enable_tablets`
is very terse and lacks details about the effect of enabling
or disabling tablets.
This change adds more details about the impact of `enable_tablets`
on newly created keyspaces, and hot to disable tablets when
keyspaces are created.
Also, a note was added to warn about the irreversibility
of the tablets enablement per keyspace.
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
7f05f95ec4