chore(docs): change .md link format to adhere to checker (#1181)

## Description

A [PR](https://github.com/defenseunicorns/uds-docs/pull/121) for the
docs site adds a link checker plugin that runs at build time; by default
it looks for relative links. This updates an outlying link found on the
build for that PR.

## Related Issue

Relates to https://github.com/defenseunicorns/uds-docs/pull/121

## Type of change

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [x] Other (security config, docs update, etc)

## Steps to Validate
N/A

## Checklist before merging

- [x] Test, docs, adr added or updated as needed
- [x] [Contributor
Guide](https://github.com/defenseunicorns/uds-template-capability/blob/main/CONTRIBUTING.md)
followed

Co-authored-by: Micah Nagel <micah.nagel@defenseunicorns.com>

docs/reference/configuration/pepr-policies.md

@@ -7,7 +7,7 @@ title: Pepr Policies
 ### Pepr Policy Exemptions
 These policies are based on the [Big Bang](https://p1.dso.mil/services/big-bang) policies created with Kyverno. You can find the source policies [here](https://repo1.dso.mil/big-bang/product/packages/kyverno-policies), Policy Names below also have links to the referenced Big Bang policy.
 
-Exemptions can be specified by a [UDS Exemption CR](../uds-operator#exemption). These take the place of Kyverno Exceptions.
+Exemptions can be specified by a [UDS Exemption CR](/reference/configuration/uds-operator#exemption). These take the place of Kyverno Exceptions.
 
 If a resource is exempted, it will be annotated as `uds-core.pepr.dev/uds-core-policies.<POLICY>: exempted`