[PATCH] DOCS: Distinguish table and index storage parameters

Hi,

This patch replaces the generic placeholder name
"storage_parameter" with more specific names in the
CREATE TABLE and CREATE INDEX reference pages.

Table-level storage parameters are documented as
"table_storage_parameter", while index-level storage
parameters are documented as "index_storage_parameter".

This makes it easier to distinguish between the two
parameter categories when reading the command syntax.

Thanks,
Vellaipandiyan