Adds anchor link

content/docs/capabilities/authorization.mdx

@@ -128,7 +128,7 @@ Reapply policies as necessary to any route or namespace:
 
 Pomerium supports policies expressed in [Rego](https://www.openpolicyagent.org/docs/latest/#rego) for organizations that prefer to use [OPA](https://www.openpolicyagent.org/).
 
-See the [Outputs](#outputs), [Inputs](#inputs), and Functions reference sections below to learn how they apply to policy evaluation.
+See the [Outputs](#outputs), [Inputs](#inputs), and [Functions](#functions) reference sections below to learn how they apply to policy evaluation.
 
 #### Outputs