For the new topN accumulators and array operators, there is some overlap in naming convention that needs to be resolved so that both accumulators and array operators can live in the docs.

In Summary:

Rename the files currently in 5.2:

source/reference/operator/aggregation/maxN.txt - > ... maxN-array-element.txt
source/reference/operator/aggregation/minN.txt - > ... minN-array-element.txt
source/reference/operator/aggregation/firstN.txt - > ... firstN-array-element.txt
source/reference/operator/aggregation/lastN.txt - > ... lastN-array-element.txt

Also check other edited files to to make sure build is clean and refs work appropriately.

source/includes/extracts-agg-operators.yaml
source/reference/operator/aggregation.txt
source/release-notes/5.2.txt

GH PRs:

https://github.com/10gen/docs-mongodb-internal/pull/138
https://github.com/10gen/docs-mongodb-internal/pull/155