docs(changelog): changelog for lts-v2.10.18 release

Change-Id: I7ce19000b6d234265c6d664c2933a24448142eb0
Signed-off-by: Release CI <ci@trustedfirmware.org>
diff --git a/readme.rst b/readme.rst
index 0d71781..1380637 100644
--- a/readme.rst
+++ b/readme.rst
@@ -63,3 +63,4 @@
 
 
 
+