(DOCSP-37629) Adds symlinks to fix redirects (#888)

Author: sarahsimpers

config/redirects

@@ -1,6 +1,9 @@
 define: prefix docs/mongocli
 define: base https://www.mongodb.com/${prefix}
 define: versions v1.0.0 v1.1.0 v1.2.0 v1.3.0 v1.4.0 v1.5 v1.6 v1.7 v1.8 v1.9 v1.10 v1.11 v1.12 v1.13 v1.14 v1.15 v1.16 v1.17 v1.18 v1.19 v1.20 v1.21 v1.22 v1.23 v1.24 v1.25 v1.26 v1.27 v1.28.1 v1.29 v1.30 v1.31 master
+symlink: upcoming -> master
+symlink: v1.32 -> master
+symlink: stable -> v1.31
 
 raw: ${prefix}/ -> ${base}/stable/
 raw: ${prefix} -> ${base}/stable/