Add link to X41's announcement about the audit

audits/2024-12-10-X41-D-Sec.md

@@ -44,15 +44,19 @@ The main focus areas where we asked X41 to spend most of their time included:
 
 The audit report was first delivered to Mullvad on 2024-11-30. It was a really good report
 as is, but together with X41 we identified some sentences which were slightly unclear.
-X41 then handed us a revised final report on 2024-12-10. Both versions are hosted on X41's
-website:
+X41 then handed us a revised final report on 2024-12-10.
+
+X41 has [posted an announcement] about the audit
+on their website. Here are the direct links to both versions of the report:
 * [2024-11-30 first version](https://www.x41-dsec.de/static/reports/X41-Mullvad-Audit-Final-Report-2024-11-18.pdf)
 * [2024-12-10 final version](https://www.x41-dsec.de/static/reports/X41-Mullvad-Audit-Public-Report-2024-12-10.pdf)
 
 We host both versions of the report in this repository:
 * [2024-11-30-X41-D-Sec-Audit-Report-v1.pdf](./2024-11-30-X41-D-Sec-Audit-Report-v1.pdf)
 * [2024-12-10-X41-D-Sec-Audit-Report-v2.pdf](./2024-12-10-X41-D-Sec-Audit-Report-v2.pdf)
 
+[posted an announcement]: https://x41-dsec.de/news/2024/12/11/mullvad/
+
 ## Overview of findings
 
 This chapter will present a summary of each finding along with Mullvad's response to them.