[DOP-27545] docs(mddocs): add en docs from docs_rework #1847

Job	Run time
S3 tests / Run S3 tests	10m 55s
HDFS tests / Run HDFS tests	10m 40s
MSSQL tests / Run MSSQL tests	6m 51s
FTP tests / Run FTP tests	9m 49s
Hive tests / Run Hive tests	7m 11s
MySQL tests / Run MySQL tests	6m 16s
Clickhouse tests / Run Clickhouse tests	8m 11s
Oracle tests / Run Oracle tests	7m 41s
Unit tests / Run unit tests	2m 39s
Samba tests / Run Samba tests	6m 12s
Iceberg tests / Run Iceberg tests	7m 11s
Scheduler tests / Run Scheduler tests	4m 30s
WebDAV tests / Run WebDAV tests	6m 6s
FTPS tests / Run FTPS tests	6m 9s
SFTP tests / Run SFTP tests	6m 5s
Tests done	17s
	1h 46m 43s

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