doc: Add and correct headings for imported files
Some files imported from the wiki are missing RST section headers and
other files are using inconsistent characters for the same header level.
Change-Id: I318c843f9bc8fb40074ef90827b9acac06463662
Signed-off-by: Paul Beesley <paul.beesley@arm.com>
diff --git a/docs/security-center.rst b/docs/security-center.rst
index 1c82f29..672c563 100644
--- a/docs/security-center.rst
+++ b/docs/security-center.rst
@@ -1,3 +1,6 @@
+Security Center
+===============
+
Security Disclosures
--------------------