DOCSP-48497 Comp cov clean up (mongodb#1095)

Author: stephmarie17

config/redirects

@@ -85,6 +85,7 @@ raw: ${prefix}/stable -> ${base}/current/
 [*-master]: ${prefix}/${version}/fundamentals/crud/write-operations/embedded-arrays/ -> ${base}/crud/update/embedded-arrays/
 [*-master]: ${prefix}/${version}/fundamentals/crud/write-operations/pkFactory/ -> ${base}/crud/pkFactory/
 [*-master]: ${prefix}/${version}/security/authentication/enterprise-mechanisms/ -> ${base}/security/authentication
+[*-master]: ${prefix}/${version}/fundamentals/promises/ -> ${base}/promises/
 
 # Usage Example Redirects