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DOCS-678: Updated ASOF Join description (#11676)

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* CLICKHOUSEDOCS-678: Updated ASOF Join Usage.

* CLICKHOUSEDOCS-678: Updated templates.

* Update docs/ru/sql-reference/statements/select/join.md

Co-authored-by: Ivan Blinkov <github@blinkov.ru>

* CLICKHOUSEDOCS-678: Update by comments.

Co-authored-by: Sergei Shtykov <bayonet@yandex-team.ru>
Co-authored-by: emironyuk <em@don.ru>
Co-authored-by: Ivan Blinkov <github@blinkov.ru>
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docs/_description_templates/template-function.md
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## function-name {#function-name-in-lower-case}
## functionName {#functionname-in-lower-case}
Short description.

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docs/_description_templates/template-setting.md
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## setting-name {#setting-name-in-lower-case}
## setting_name {#setting_name}
Description.

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docs/en/sql-reference/statements/select/join.md
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@ -51,7 +51,11 @@ Modifies how matching by "join keys" is performed
`ASOF JOIN` is useful when you need to join records that have no exact match.
Tables for `ASOF JOIN` must have an ordered sequence column. This column cannot be alone in a table, and should be one of the data types: `UInt32`, `UInt64`, `Float32`, `Float64`, `Date`, and `DateTime`.
Algorithm requires the special column in tables. This column:
- Must contain an ordered sequence.
- Can be one of the following types: [Int*, UInt*](../../data-types/int-uint.md), [Float*](../../data-types/float.md), [Date](../../data-types/date.md), [DateTime](../../data-types/datetime.md), [Decimal*](../../data-types/decimal.md).
- Can't be the only column in the `JOIN` clause.
Syntax `ASOF JOIN ... ON`:

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docs/ru/sql-reference/statements/select/join.md
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@ -45,7 +45,11 @@ FROM <left_table>
`ASOF JOIN` применим в том случае, когда необходимо объединять записи, которые не имеют точного совпадения.
Таблицы для `ASOF JOIN` должны иметь столбец с отсортированной последовательностью. Этот столбец не может быть единственным в таблице и должен быть одного из типов: `UInt32`, `UInt64`, `Float32`, `Float64`, `Date` и `DateTime`.
Для работы алгоритма необходим специальный столбец в таблицах. Этот столбец:
- Должен содержать упорядоченную последовательность.
- Может быть одного из следующих типов: [Int*, UInt*](../../data-types/int-uint.md), [Float*](../../data-types/float.md), [Date](../../data-types/date.md), [DateTime](../../data-types/datetime.md), [Decimal*](../../data-types/decimal.md).
- Не может быть единственным столбцом в секции `JOIN`.
Синтаксис `ASOF JOIN ... ON`: