Adds new contributor

Signed-off-by: Arthur Gautier <baloo@gandi.net>

Author: Arthur Gautier

README.md

@@ -311,6 +311,7 @@ Other contributors:
 * Igor Mastak intvar event https://github.com/mastak
 * Xie Zhenye fix: missing update _next_seq_no https://github.com/xiezhenye
 * Abrar Sheikh: Time as mysql.timedelta
+* Keegan Parker secondary database for reference schema https://github.com/kdparker
 
 Thanks to GetResponse for their support