Merge pull request #137 from zimeon/issue-136

Remove extraneous sentence in 1.3.3

docs/0.1/index.md

@@ -126,7 +126,7 @@ To address this use case, the provider creates and makes available a dated list
 
 This specification is based on the [Activity Streams 2.0 specification][org-w3c-activitystreams] and uses the following key terms from Activity Streams:
 
-* [Activity](https://www.w3.org/TR/activitystreams-core/#activity): `Activity` objects are used to describe an individual change to the metadata of an Entity Set. These often affect just one Entity but in some cases more than one Entity may be affected by related changes that are reflected in multiple sequenced Activities.
+* [Activity](https://www.w3.org/TR/activitystreams-core/#activity): `Activity` objects are used to describe an individual change to the metadata of an Entity Set.
 * [Collection](https://www.w3.org/TR/activitystreams-core/#collections): The entry point for all the information about changes to the metadata of an Entity Set is modeled as a Collection, using the [`OrderedCollection`](https://www.w3.org/TR/activitystreams-core/#dfn-orderedcollection) type to indicate that the activities in the collection are in time order.
 * [OrderedCollectionPage](https://www.w3.org/TR/activitystreams-core/#dfn-orderedcollectionpage): The complete Collection of changes is expressed as a set of `OrderedCollectionPage` objects to ensure that there are manageable chunks of change activities described even for large and long-running sets of updates.