DOCSP-26110 symlink for redirects (#455)

(cherry picked from commit 6a76d5b)

Author: rustagir

config/redirects

@@ -2,6 +2,8 @@ define: prefix docs/drivers/node
 define: base https://www.mongodb.com/${prefix}
 define: versions v3.6 v3.7 v4.0 v4.1 v4.2 v4.3 v4.4 v4.5 v4.6 v4.7 v4.8 v4.9 v4.10 master
 
+symlink: current -> master
+
 raw: ${prefix}/ -> ${base}/current/
 raw: ${prefix}/stable -> ${base}/current/