Fix links to Platform News items

These were previously correct but were broken during the migration of
opensafely.org to the new Wordpress platform.

Author: evansd

docs/type-one-opt-outs.md

@@ -5,7 +5,7 @@ NHS England policy was that the [Type 1 Opt-Out](https://www.nhs.uk/using-the-nh
 In June 2023, the [legal basis for the operation of the platform](https://digital.nhs.uk/about-nhs-digital/corporate-information-and-documents/directions-and-data-provision-notices/data-provision-notices-dpns/opensafely-covid-19-service-data-provision-notice) [[archived here](https://web.archive.org/web/20250414105355/https://digital.nhs.uk/about-nhs-digital/corporate-information-and-documents/directions-and-data-provision-notices/data-provision-notices-dpns/opensafely-covid-19-service-data-provision-notice)] changed to powers that traditionally _do_ uphold a Type 1 Opt-out.
 Therefore, since June 2023, the OpenSAFELY platform has been required to exclude patients with a Type 1 Opt-out from all projects, except those explicitly described in our [Data Access Policy](data-access-policy.md) and [Data Protection Impact Assessment](https://digital.nhs.uk/about-nhs-digital/corporate-information-and-documents/directions-and-data-provision-notices/data-provision-notices-dpns/opensafely-covid-19-service-data-provision-notice#further-information).
 
-The policy for determining which patients have an active Type 1 Opt-out is agreed by NHS England. This policy has changed over time. See [here](https://www.opensafely.org/changelog/#2024-08-07) and [here](https://www.opensafely.org/changelog/#2024-10-29) for how that has impacted the data made available via OpenSAFELY.
+The policy for determining which patients have an active Type 1 Opt-out is agreed by NHS England. This policy has changed over time. See [here](https://www.opensafely.org/changelog/2024-08-07/) and [here](https://www.opensafely.org/changelog/2024-10-29/) for how that has impacted the data made available via OpenSAFELY.
 
 ## Technical details