Fix typo in quality rules message

Author: mwojtyczka

docs/dqx/docs/reference/quality_rules.mdx

@@ -306,7 +306,7 @@ For brevity, the `name` field in the examples is omitted, meaning it will be aut
     function: sql_expression
     arguments:
       expression: col3 >= col2 and col3 <= 10
-      msg: ol3 is less than col2 and col3 is greater than 10
+      msg: col3 is less than col2 and col3 is greater than 10
       name: custom_output_name
       negate: false
 ```