docs: Update SMCCC doc, other changes for release

Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
Change-Id: Ie842d6a9919776de151a4e9304f870aede07c47a
diff --git a/docs/components/exception-handling.rst b/docs/components/exception-handling.rst
index e330a62..4cca5f4 100644
--- a/docs/components/exception-handling.rst
+++ b/docs/components/exception-handling.rst
@@ -467,7 +467,7 @@
 Non-secure world to request Secure services. They're broadly classified as
 *Fast* or *Yielding* (see `SMCCC`__).
 
-.. __: http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html
+.. __: https://developer.arm.com/docs/den0028/latest
 
 -  *Fast* SMCs are atomic from the caller's point of view. I.e., they return
    to the caller only when the Secure world has finished serving the request.