* DOCSUP-2806: Add meta intro.

* DOCSUP-2806: Update meta intro.

* DOCSUP-2806: Fix meta.

* DOCSUP-2806: Add quotes for meta headers.

* DOCSUP-2806: Remove quotes from meta headers.

* DOCSUP-2806: Add meta headers.

* DOCSUP-2806: Fix quotes in meta headers.

* DOCSUP-2806: Update meta headers.

* DOCSUP-2806: Fix link to nowhere in EN.

* DOCSUP-2806: Fix link (settings to tune)

* DOCSUP-2806: Fix links.

* DOCSUP-2806:Fix links EN

* DOCSUP-2806: Fix build errors.

* DOCSUP-2806: Fix meta intro.

* DOCSUP-2806: Fix toc_priority in examples datasets TOC.

* DOCSUP-2806: Fix items order in toc.

* DOCSUP-2806: Fix order in toc.

* DOCSUP-2806: Fix toc order.

* DOCSUP-2806: Fix order in toc.

* DOCSUP-2806: Fix toc index in create

* DOCSUP-2806: Fix toc order in create.
Co-authored-by: Nromanzhukov <romanzhukov@yandex-team.ru>
Co-authored-by: Nalexey-milovidov <milovidov@yandex-team.ru>

* Replace underscores with hyphens

* remove temporary code

* fix style check

* fix collapse

* replace exit with assert in test_single_page

* improve save_raw_single_page docs option

* More grammar fixes

* "Built from" link in new tab

* fix mistype

* Example of include in docs

* add anchor to meeting form

* Draft of translation helper

* WIP on translation helper

* Replace some fa docs content with machine translation

* add normalize-en-markdown.sh

* normalize some en markdown

* normalize some en markdown

* admonition support

* normalize

* normalize

* normalize

* support wide tables

* normalize

* normalize

* normalize

* normalize

* normalize

* normalize

* normalize

* normalize

* normalize

* normalize

* normalize

* normalize

* normalize

* lightly edited machine translation of introdpection.md

* lightly edited machhine translation of lazy.md

* WIP on translation utils

* Normalize ru docs

* Normalize other languages

* some fixes

* WIP on normalize/translate tools

* add requirements.txt

* [experimental] add es docs language as machine translated draft

* remove duplicate script

* Back to wider tab-stop (narrow renders not so well)

* Typo fix.

* Links fix.

* Fixed links in docs.

* More fixes.

* docs/en: cleaning some files

* docs/en: cleaning data_types

* docs/en: cleaning database_engines

* docs/en: cleaning development

* docs/en: cleaning getting_started

* docs/en: cleaning interfaces

* docs/en: cleaning operations

* docs/en: cleaning query_lamguage

* docs/en: cleaning en

* docs/ru: cleaning data_types

* docs/ru: cleaning index

* docs/ru: cleaning database_engines

* docs/ru: cleaning development

* docs/ru: cleaning general

* docs/ru: cleaning getting_started

* docs/ru: cleaning interfaces

* docs/ru: cleaning operations

* docs/ru: cleaning query_language

* docs: cleaning interfaces/http

* Update docs/en/data_types/array.md

decorated ```
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/getting_started/example_datasets/nyc_taxi.md

fixed typo
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/getting_started/example_datasets/ontime.md

fixed typo
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/interfaces/formats.md

fixed error
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/operations/table_engines/custom_partitioning_key.md
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/operations/utils/clickhouse-local.md
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/query_language/dicts/external_dicts_dict_sources.md
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/operations/utils/clickhouse-local.md
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/query_language/functions/json_functions.md
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/query_language/functions/json_functions.md
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/query_language/functions/other_functions.md
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/query_language/functions/other_functions.md
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/query_language/functions/date_time_functions.md
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* Update docs/en/operations/table_engines/jdbc.md
Co-Authored-By: NBayoNet <da-daos@yandex.ru>

* docs: fixed error

* docs: fixed error

* Doc fix: add spaces where missing

* Doc fixes: rm double spaces

* Doc fixes: edit spaces

* Doc fixes: rm double spaces in /fa

* Revert "Doc fixes: rm double spaces in /fa"

This reverts commit bb879a62ef5fa965d989fea3b1b2a693d2016a2d.

* Doc fix: resolve all problems with double spaces in /fa

* Doc fix: add spaces for readability

* Doc fix: add spaces

* Fix spaces

* CLICKHOUSE-4063: less manual html @ index.md

* CLICKHOUSE-4063: recommend markdown="1" in README.md

* CLICKHOUSE-4003: manually purge custom.css for now

* CLICKHOUSE-4064: expand <details> before any print (including to pdf)

* CLICKHOUSE-3927: rearrange interfaces/formats.md a bit

* CLICKHOUSE-3306: add few http headers

* Remove copy-paste introduced in #3392

* Hopefully better chinese fonts #3392

* get rid of tabs @ custom.css

* Apply comments and patch from #3384

* Add jdbc.md to ToC and some translation, though it still looks badly incomplete

* minor punctuation

* Add some backlinks to official website from mirrors that just blindly take markdown sources

* Do not make fonts extra light

* find . -name '*.md' -type f | xargs -I{} perl -pi -e 's//g' {}

* find . -name '*.md' -type f | xargs -I{} perl -pi -e 's/ sql/g' {}

* Remove outdated stuff from roadmap.md

* Not so light font on front page too

* Refactor Chinese formats.md to match recent changes in other languages