Fix broken links in "See Also"

The link was transformed into "https://clickhouse.tech/docs/en/sql-reference/sql-reference/statements/create/table#ttl-expression" which did not exist and got 404.

docs/en/sql-reference/statements/alter/ttl.md

@@ -81,5 +81,5 @@ The `TTL` is no longer there, so the second row is not deleted:
 
 ### See Also
 
-- More about the [TTL-expression](../../../sql-reference/statements/create/table#ttl-expression).
-- Modify column [with TTL](../../../sql-reference/statements/alter/column#alter_modify-column).
+- More about the [TTL-expression](../../../../sql-reference/statements/create/table#ttl-expression).
+- Modify column [with TTL](../../../../sql-reference/statements/alter/column#alter_modify-column).