Update changes/2025-06-30_branch_keys_version_2/protect_branch_key_without_kms_ec.md

Co-authored-by: José Corella <[email protected]>

Author: rishav-karanjit

changes/2025-06-30_branch_keys_version_2/protect_branch_key_without_kms_ec.md

@@ -39,7 +39,7 @@ an actor cannot modify the **Branch Key Context Digest**.
 1.5 considers a local HMAC operation,
 with the plain-text AES-256 being the key.
 
-See [Un-modeled Branch Key Context Key Values](./un-modeled_branch_key_context_key_values.md) for what did we do about un-prefixed context of a Branch Key.
+See [Un-modeled Branch Key Context Key Values](./un-modeled_branch_key_context_key_values.md) for what we did about un-prefixed context of a Branch Key.
 
 ## 1.2 Getting Branch Keys