Update check-header-policy.md

Restored heading

Author: dlepow

articles/api-management/check-header-policy.md

@@ -47,7 +47,7 @@ Use the `check-header` policy  to enforce that a request has a specified HTTP he
 ## Usage
 
 - **[Policy sections:](./api-management-howto-policies.md#sections)** inbound
-- **[Scopes:](./api-management-howto-policies.md#scopes)** global, product, API, operation
+- **[Policy scopes:](./api-management-howto-policies.md#scopes)** global, product, API, operation
 -  [**Gateways:**](api-management-gateways-overview.md) dedicated, consumption, self-hosted
 
 ## Example
@@ -62,4 +62,4 @@ Use the `check-header` policy  to enforce that a request has a specified HTTP he
 
 * [API Management access restriction policies](api-management-access-restriction-policies.md)
 
-[!INCLUDE [api-management-policy-ref-next-steps](../../includes/api-management-policy-ref-next-steps.md)]
+[!INCLUDE [api-management-policy-ref-next-steps](../../includes/api-management-policy-ref-next-steps.md)]