docs: grammar: Data Model

Made grammar changes to the Data Model page.

docs: grammar: Connect to TDengine

Made some grammar and reworded the differences between connectors.

docs: stylistic and phrasing changes

Seems like previous PR was overwritten and reverted to original.

* fix: failed to alloc memory when big number tables

for 2.4

[TD-15803]

* fix: update taos-tools

for 2.4

fix: ignore Ref is not there to save true error

for 2.4

[TD-15803]

stddev order by desc and bsearch allow desc search

* fix: broken links

* docs: fix picture links

docs: resolve a few broken links

docs: copy docs-examples from develop to 2.4

docs: remove 2.6 new functions from 2.4 document in EN

docs: remove 2.6 new functions from 2.4 document

feat(client): check return value from meta hashmap

fix(query): V24 Fill function with order by desc

[TD-14782]

* enh: move taosdemo in rpm and deb

[TD-15642]

* update taos-tools

for 2.4

fix: fix testcase query/queryDiffColsTagsAndOr.py after commit ID 70d5afa1

* enh: cmake git submodule

for 2.4

[TD-15342]

* enh: cmake git submodule

use community dir var

[TD-15342]

* revert to 990092ce

for 2.4

fix: default subquery order by ts with interval

for 2.4

[TD-11857]

fix(common): reverseCopy not support timestamp datatype

[TS-1480]