DOCS-9003: adds redirect for db.collection.createIndexes

Author: schmalliso

config/redirects

@@ -1342,6 +1342,7 @@ raw: /master/release-notes/3.0-general-improvements -> ${base}/release-notes/3.0
 [*-v3.4]: /${version}/reference/method/db.aggregate -> ${base}/${version}/reference/method/db.collection.aggregate
 [*-v3.4]: /${version}/reference/operator/query/jsonSchema -> ${base}/${version}/core/document-validation
 [*-v3.4]: /${version}/reference/command/replSetResizeOplog -> ${base}/${version}/reference/command
+[*-v3.0]: /${version}/reference/method/db.collection.createIndexes -> ${base}/{$version}/reference/method/db.collection.createIndex
 
 [v3.6-*]: /${version}/core/data-modeling-json-schema -> ${base}/${version}/reference/operator/query/jsonSchema