[TS-1330]<test>: update doc for regular expression

* [TD-13708]<test>:csharp connector subscribe test cases

* [TD-13708]<test>:fix indent

* [TD-13708]<test>:fix with comment

* [TD-13708]<test>:fix error info and uncomment database fixture dispose method

* [TD-13708]<test>:fix error info

* [TD-13708]<test>:fix error info,taos_errstr work for null point

[TD-14121]<fix>: script/general/compute/cast.sim failed on ARM64 Linux

fix core if subquery reslut is too large in unique function

Fix/td 14070  fix compare error if value is NULL with nchar and binary type

[TS-1278]<test>: add test case

TD-13973: document for 2.6.0.x

[TD-14122][TD-14123]:fix failed test on arm by converting from sim tst to python test to overcome NaN value and its string representation

[TD-14122][TD-14123]:fix failed test on arm by converting from sim test to python test to overcome nan value and its string representation

* [TD-12520]<docs>: refine docker documents.

* update taosadapter part

* remove manually launch taosadapter section

* update English version

* [TD-12520]<docs>: refine doc for docker usage

* [TD-12520]<docs>: fix docker doc

* fix typo

* fix redundant lines

* [TD-12520]<docs>: refine docker documents.

* update taosadapter part

* remove manually launch taosadapter section

* update English version

* [TD-12520]<docs>: refine doc for docker usage

* [TD-12520]<docs>: fix docker doc

* fix typo

* [TD-13948]<fix>:csharp connector test case add database fixture and execute order

* [TD-13948]<fix>:run CI

* [TD-11980]<docs>: refine taosdemo docs

* fix param list

* refine param list

* Update docs.md

* fix taosdemo markdown

* use JSON instead of meta

* add CSV format description

* [TD-11980]<docs>: update taosdemo command line list
Co-authored-by: Nwu champion <cpwu@taosdata.com>

[TD-13970]<feature>: timestamp format shortcut