E2E typo fix in spec

specification/modules/end_to_end_encryption.rst

@@ -291,8 +291,8 @@ v         string           **Required.** Version of the encrypted attachments
 ========= ========= ============================================================
 Parameter Type      Description
 ========= ========= ============================================================
-key       string    **Required.** Key type. Must be ``oct``.
-key_opts  [string]  **Required.** Key operations. Must at least contain
+kty       string    **Required.** Key type. Must be ``oct``.
+key_ops  [string]   **Required.** Key operations. Must at least contain
                     ``encrypt`` and ``decrypt``.
 alg       string    **Required.** Algorithm. Must be ``A256CTR``.
 k         string    **Required.** The key, encoded as urlsafe unpadded base64.