Remove EXPERIMENTAL from attestation support

We've been using patch attestation for over a year now, so remove the
EXPERIMENTAL claim -- it's no more experimental by this point than the
rest of b4.

Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/README.rst b/README.rst
index e13367a..ca4718c 100644
--- a/README.rst
+++ b/README.rst
@@ -36,8 +36,8 @@ dependencies that are tracked via submodules::
 
     git submodule update --init
 
-Patch attestation (EXPERIMENTAL)
---------------------------------
+Patch attestation
+-----------------
 B4 implements two attestation verification mechanisms:
 
 - DKIM attestation using the dkimpy library