DOCSP-10089: update redirects file (#15)

Author: Chris Cho

config/redirects

@@ -1,8 +1,7 @@
 define: base https://docs.mongodb.com/kafka-connector
-define: versions v1.0 master
-symlink: v1.0 -> master
+define: versions v1.0 v1.1 master
 symlink: upcoming -> master
-symlink: current -> v1.0
+symlink: current -> v1.1
 
 raw: kafka-connector/ -> ${base}/current