Fixup changelog

Author: erikjohnston

CHANGES.md

@@ -1,6 +1,11 @@
 Synapse 1.28.0 (2021-02-25)
 ===========================
 
+Note that this release drops support for ARMv7 in the official Docker images, due to repeated problems building for ARMv7 (and the associated maintenance burden this entails).
+
+This release also fixes the documentation included in v1.27.0 around the callback URI for SAML2 identity providers. If your server is configured to use single sign-on via a SAML2 IdP, you may need to make configuration changes. Please review [UPGRADE.rst](UPGRADE.rst) for more details on these changes.
+
+
 Internal Changes
 ----------------
 
@@ -10,10 +15,6 @@ Internal Changes
 Synapse 1.28.0rc1 (2021-02-19)
 ==============================
 
-Note that this release drops support for ARMv7 in the official Docker images, due to repeated problems building for ARMv7 (and the associated maintenance burden this entails).
-
-This release also fixes the documentation included in v1.27.0 around the callback URI for SAML2 identity providers. If your server is configured to use single sign-on via a SAML2 IdP, you may need to make configuration changes. Please review [UPGRADE.rst](UPGRADE.rst) for more details on these changes.
-
 Removal warning
 ---------------