move API definitions into backup section
@@ -890,6 +890,8 @@ The ``session_data`` field in the backups is constructed as follows:
using the MAC key generated above. The first 8 bytes of the resulting MAC
are base64-encoded, and become the ``mac`` property of the ``session_data``.
+{{key_backup_cs_http_api}}
+
Key exports
~~~~~~~~~~~
@@ -1215,11 +1217,6 @@ Key management API
{{keys_cs_http_api}}
-Key Backup API
-~~~~~~~~~~~~~~
-
-{{key_backup_cs_http_api}}
-
.. anchor for link from /sync api spec
.. |device_lists_sync| replace:: End-to-end encryption
