added freeze 16

Author: Samuel Neale

ukllc_book/_toc.yml

@@ -13,6 +13,8 @@ parts:
         - title: UK LLC sample
           file: docs/ukllc_key_facts/sample/ukllc_sample.md
           sections:
+            - title: Freeze 16 | May 2026
+              file: docs/ukllc_key_facts/sample/freezes/freeze16.ipynb
             - title: Freeze 15 | Feb 2026
               file: docs/ukllc_key_facts/sample/freezes/freeze15.ipynb
             - title: Freeze 14 | Nov 2025