database references style corrections and clarification

Author: Sam Kleinman

source/applications/database-references.txt

@@ -24,19 +24,28 @@ MongoDB applications use one of two methods for relating documents:
    cases.
 
 #. :ref:`DBRefs <dbref>` are references from one document to another
-   using its _id field value, and collection, and (possibly) a database name, for the target
-   document. Resolving DBRefs requires queries from your
-   application; however, many :doc:`drivers </applications/drivers>`
-   have helper methods to resolve DBRefs without having to form the query manually.
-   No official driver automatically resolves DBRefs to documents for you; some frameworks and toolkits 
-   provide automatically linking and (link) resolution if you wish to use these features.
-   DBRefs are useful when you need to embed documents from multiple collections in documents from one
-   collection. They also provide a common format and type for tools which can represent the link semantics provided
-   in your documents, or for interactions between frameworks which store linked documents.
+   using the value of the first documents ``_id`` field collection,
+   and optionally database name. To resolve DBRefs, your application
+   must perform additional queries to return the referenced
+   documents. Many :doc:`drivers </applications/drivers>` have helper
+   methods that form the query for the DBRef automatically. The
+   drivers [#offical-driver]_ do not *automatically* resolve DBRefs
+   into documents.
+
+   Use DBRefs when you need to embed documents from multiple
+   collections in documents from one collection. DBRefs also provide a
+   common format and type to represent these relationships between
+   documents. DBRefs provide common semantics for representing these
+   links between documents if your database must interact with
+   multiple frameworks and tools.
 
 Unless you have a compelling reason for using DBrefs, use manual
 references.
 
+.. [#offical-driver] Some community supported drivers may have
+   alternate behavior and may resolve DBRefs into documents
+   already.
+
 .. _document-references:
 
 Manual References
@@ -101,7 +110,7 @@ Background
 DBRefs are a convention for representing a :term:`document`, rather
 than a specific reference "type." They include the name of the
 collection, and in some cases the database, in addition to the
-value from the _id field.
+value from the ``_id`` field.
 
 Format
 ~~~~~~