docs: Add initial 10.2.1 release notes

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 8c4845d29b21ec902c59d84e51d95639f0709085)
diff --git a/docs/relnotes.html b/docs/relnotes.html
index 7437e9b..60d0073 100644
--- a/docs/relnotes.html
+++ b/docs/relnotes.html
@@ -21,6 +21,8 @@
 </p>
 
 <ul>
+<li><a href="relnotes/10.2.1.html">10.2.1 release notes</a>
+<li><a href="relnotes/10.2.html">10.2 release notes</a>
 <li><a href="relnotes/10.1.4.html">10.1.4 release notes</a>
 <li><a href="relnotes/10.1.3.html">10.1.3 release notes</a>
 <li><a href="relnotes/10.1.2.html">10.1.2 release notes</a>