fix useCases.md comments

Author: ekraffmiller

docs/useCases.md

@@ -228,7 +228,7 @@ createCollection.execute(collectionDTO).then((createdCollectionId: number) => {
 
 _See [use case](../src/collections/domain/useCases/CreateCollection.ts) implementation_.
 
-The above example creates the new collection in the `:root` collection since no collection identifier is specified. If you want to create the collection in a different collection, you must add the collection identifier as a second parameter in the use case call.
+The above example creates the new collection in the root collection since no collection identifier is specified. If you want to create the collection in a different collection, you must add the collection identifier as a second parameter in the use case call.
 
 The use case returns a number, which is the identifier of the created collection.
 
@@ -513,7 +513,7 @@ createDataset.execute(datasetDTO).then((newDatasetIds: CreatedDatasetIdentifiers
 
 _See [use case](../src/datasets/domain/useCases/CreateDataset.ts) implementation_.
 
-The above example creates the new dataset in the `:root` collection since no collection identifier is specified. If you want to create the dataset in a different collection, you must add the collection identifier as a second parameter in the use case call.
+The above example creates the new dataset in the root collection since no collection identifier is specified. If you want to create the dataset in a different collection, you must add the collection identifier as a second parameter in the use case call.
 
 The use case returns a [CreatedDatasetIdentifiers](../src/datasets/domain/models/CreatedDatasetIdentifiers.ts) object, which includes the persistent and numeric identifiers of the created dataset.