op-build v2.1 release notes

Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
diff --git a/doc/release-notes/index.rst b/doc/release-notes/index.rst
index e4c0f24..7919ed8 100644
--- a/doc/release-notes/index.rst
+++ b/doc/release-notes/index.rst
@@ -18,3 +18,5 @@
    v2.0.1
    v2.0.2
    v2.0.3
+   v2.1-rc1
+   v2.1