Tweak to the service protocol doc; move the location of an array type indicator.

runtime/vm/service/service.md

 # Dart VM Service Protocol 3.2
 
 > Please post feedback to the [observatory-discuss group][discuss-list]
 
 This document describes of _version 3.2_ of the Dart VM Service Protocol. This
 protocol is used to communicate with a running Dart Virtual Machine.
 
 To use the Service Protocol, start the VM with the *--observe* flag.
 The VM will start a webserver which services protocol requests via WebSocket.
 It is possible to make HTTP (non-WebSocket) requests,
@@ skipping 2276 matching lines @@
 
   // Code coverage information for this range.  Provided only when the
   // Coverage report has been requested and the range has been
   // compiled.
   SourceReportCoverage coverage [optional];
 
   // Possible breakpoint information for this range, represented as a
   // sorted list of token positions.  Provided only when the when the
   // PossibleBreakpoint report has been requested and the range has been
   // compiled.
-  int possibleBreakpoints[] [optional];
+  int[] possibleBreakpoints [optional];
 }
 ```
 
 The _SourceReportRange_ class represents a range of executable code
 (function, method, constructor, etc) in the running program.  It is
 part of a [SourceReport](#sourcereport).
 
 Note that _SourceReportRange_ does not extend [Response](#response)
 and therefore will not contain a _type_ property.
 
@@ skipping 163 matching lines @@
 version | comments
 ------- | --------
 1.0 | initial revision
 2.0 | Describe protocol version 2.0.
 3.0 | Describe protocol version 3.0.  Added UnresolvedSourceLocation.  Added Sentinel return to getIsolate.  Add AddedBreakpointWithScriptUri.  Removed Isolate.entry. The type of VM.pid was changed from string to int.  Added VMUpdate events.  Add offset and count parameters to getObject() and offset and count fields to Instance. Added ServiceExtensionAdded event.
 3.1 | Add the getSourceReport RPC.  The getObject RPC now accepts offset and count for string objects.  String objects now contain length, offset, and count properties.
 3.2 | Isolate objects now include the runnable bit and many debugger related RPCs will return an error if executed on an isolate before it is runnable.
 
 
 [discuss-list]: https://groups.google.com/a/dartlang.org/forum/#!forum/observatory-discuss