[DOP-27545] docs(mddocs): add en docs from docs_rework #1843

Job	Run time
MSSQL tests / Run MSSQL tests	7m 26s
Oracle tests / Run Oracle tests	7m 33s
WebDAV tests / Run WebDAV tests	6m 28s
Hive tests / Run Hive tests	7m 12s
HDFS tests / Run HDFS tests	11m 4s
MySQL tests / Run MySQL tests	6m 26s
Iceberg tests / Run Iceberg tests	7m 17s
Clickhouse tests / Run Clickhouse tests	11m 11s
FTP tests / Run FTP tests	9m 37s
Samba tests / Run Samba tests	6m 32s
FTPS tests / Run FTPS tests	6m 24s
SFTP tests / Run SFTP tests	6m 21s
S3 tests / Run S3 tests	11m 0s
Scheduler tests / Run Scheduler tests	4m 35s
Unit tests / Run unit tests	2m 30s
Tests done	21s
	1h 51m 57s

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