Merge pull request #4688 from BASadityaSrinivas/patch-1

Add Sqitch to ClickHouse schema migration tools documentation

Author: Blargian

knowledgebase/schema_migration_tools.mdx

@@ -16,6 +16,7 @@ We often get asked about a good schema migration tool for ClickHouse and what is
 There is no standard schema migration tool for ClickHouse, but we have compiled the following list (in no particular order) of automatic schema migration tools with support for ClickHouse that we know:
 
 - [Goose](https://github.com/pressly/goose)
+- [Sqitch](https://sqitch.org/docs/manual/sqitchtutorial-clickhouse/)
 - [Atlas](https://atlasgo.io/guides/clickhouse?utm_source=clickhouse&utm_term=knowledge)
 - [Bytebase](https://www.bytebase.com/)
 - [Flyway](https://documentation.red-gate.com/fd/supported-databases-and-versions-143754067.html)