Description

https://docs.mongodb.com/manual/reference/limits/#Sharding-Existing-Collection-Data-Size

maxCollectionSize (MB) = maxSplits * (chunkSize / 2)

I believe this two stems from the fact that initial chunks will be half full when created. Explaining this would better help users understand how many chunks to expect when sharding a collection.

Scope of changes

Impact to Other Docs

MVP (Work and Date)

Resources (Scope or Design Docs, Invision, etc.)