Merge pull request #271370 from davidsmatlak/ds-policy-doc-edits-20240405

Fix header

Author: prmerger-automator[bot]

articles/governance/policy/concepts/definition-structure-policy-rule.md

@@ -26,7 +26,7 @@ In the `then` block, you define the effect that happens when the `if conditions
 
 For more information about _policyRule_, go to the [policy definition schema](https://schema.management.azure.com/schemas/2020-10-01/policyDefinition.json).
 
-### Logical operators
+## Logical operators
 
 Supported logical operators are: