Fix - Typo in 3rd line of migration strategies (#3522)

Solves the issue #3520

src/data/roadmaps/backend/content/123-scalability/102-migration-strategies.md

@@ -1,6 +1,6 @@
 # Migration Strategies
 
-Learn how to run database migrations effectively. Especially zero downtime multi-phase schema migrations. Rather than make all changes at once, do smaller incremental changes to allow old code, and new code to worth with the database at the same time, before removing old code, and finally removing the parts of the database schema which is no longer used.
+Learn how to run database migrations effectively. Especially zero downtime multi-phase schema migrations. Rather than make all changes at once, do smaller incremental changes to allow old code, and new code to work with the database at the same time, before removing old code, and finally removing the parts of the database schema which is no longer used.
 
 Visit the following resources to learn more: