Add key info for David's signing key
diff --git a/KEYS b/KEYS
index 18714ae..b0b9dd3 100644
--- a/KEYS
+++ b/KEYS
@@ -1169,6 +1169,13 @@
-----END PGP PUBLIC KEY BLOCK-----
+pub rsa4096 2019-09-10 [SC] [expires: 2020-09-10]
+ 63F2B2B8D10CCC7A0CE88A72E9F87164989E9B3F
+uid [ultimate] David Arthur (CODE SIGNING KEY) <davidarthur@apache.org>
+sig 3 E9F87164989E9B3F 2019-09-10 David Arthur (CODE SIGNING KEY) <davidarthur@apache.org>
+sub rsa4096 2019-09-10 [E] [expires: 2020-09-10]
+sig E9F87164989E9B3F 2019-09-10 David Arthur (CODE SIGNING KEY) <davidarthur@apache.org>
+
-----BEGIN PGP PUBLIC KEY BLOCK-----
mQINBF13qmABEACjLjD7Kk0ZcrRu2t4/gzTS+aokaKSgJpUAlsZG+97VyeRXwEOY