DOC-8008 Update scope limit as noted by PM

modules/developer-preview/pages/collections/collections-overview.adoc

@@ -17,7 +17,7 @@ For example, within a bucket that contains travel information, documents that re
 [#scopes-introduction]
 == Scopes
 A _scope_ is a mechanism for the grouping of multiple collections.
-Up to 100 scopes can be created per bucket. Collection-names must be unique within their scope.
+Up to 1000 scopes can be created per cluster. Collection-names must be unique within their scope.
 Collections might be assigned to different scopes according to content-type, or to deployment-phase (ie, test versus production). Applications can be assigned per-scope access-rights; allowing each application to access only those collections it requires.
 
 [#naming-for-scopes-and-collection]