DOCSP-17946 find method definition (#153)

* updated find method definition

Author: kyuan-mongodb

source/fundamentals/crud/read-operations/cursor.txt

@@ -31,13 +31,10 @@ data from a `FindIterable
    other iterables such as an `AggregateIterable
    <{+api+}/apidocs/mongodb-driver-sync/com/mongodb/client/AggregateIterable.html>`__.
 
-The ``find()`` method iterates through all the documents in your
-collection to find documents that match your query and returns an
-instance of a ``FindIterable``. 
-
-A ``FindIterable`` consists of documents matched by your search criteria
-and allows you to further specify which documents to see by setting
-parameters through methods. 
+The ``find()`` method creates and returns an instance of a
+``FindIterable``. A ``FindIterable`` allows you to browse the documents
+matched by your search criteria and to further specify which documents
+to see by setting parameters through methods.
 
 Terminal Methods
 ----------------