Merge pull request #6006 from ildus/patch-1

Add yet another PostgreSQL FDW to integrations.md

docs/en/interfaces/third-party/integrations.md

@@ -14,6 +14,7 @@
         - [clickhousedb_fdw](https://github.com/Percona-Lab/clickhousedb_fdw)
         - [infi.clickhouse_fdw](https://github.com/Infinidat/infi.clickhouse_fdw) (uses [infi.clickhouse_orm](https://github.com/Infinidat/infi.clickhouse_orm))
         - [pg2ch](https://github.com/mkabilov/pg2ch)
+        - [clickhouse_fdw](https://github.com/adjust/clickhouse_fdw)
     - [MSSQL](https://en.wikipedia.org/wiki/Microsoft_SQL_Server)
         - [ClickHouseMigrator](https://github.com/zlzforever/ClickHouseMigrator)
 - Message queues