docs(changelog): changelog for lts-v2.10.13 release

Change-Id: I00abacb9426e515cd7f1ded4ab483c5d39ce83d5
Signed-off-by: Release CI <ci@trustedfirmware.org>
diff --git a/readme.rst b/readme.rst
index 758d692..5e1deab 100644
--- a/readme.rst
+++ b/readme.rst
@@ -58,3 +58,4 @@
 
 
 
+