Update code documentation.

Author: greenrobot-team

README.md

@@ -161,7 +161,7 @@ query.close();
 ### Streams
 
 Streams can be created from queries.
-The streams can be extended with [rxdart](https://github.com/ReactiveX/rxdart);
+Note: Dart Streams can be extended with [rxdart](https://github.com/ReactiveX/rxdart).
 
 ```dart
     import "package:objectbox/src/observable.dart";

lib/objectbox.dart

@@ -1,9 +1,14 @@
+/// ObjectBox for Dart is a standalone database storing Dart objects locally,
+/// with strong ACID semantics.
+///
+/// See the [README](https://github.com/objectbox/objectbox-dart#readme)
+/// to get started.
 library objectbox;
 
 export 'src/annotations.dart';
+export 'src/box.dart';
 export 'src/common.dart';
 export 'src/model.dart';
-export 'src/store.dart';
-export 'src/box.dart';
 export 'src/modelinfo/index.dart';
 export 'src/query/query.dart';
+export 'src/store.dart';

lib/src/query/query.dart

@@ -564,6 +564,11 @@ class ConditionGroupAll extends ConditionGroup {
   ConditionGroupAll(conditions) : super(conditions, bindings.obx_qb_all);
 }
 
+/// A repeatable Query returning the latest matching Objects.
+///
+/// Use [find] or related methods to fetch the latest results from the BoxStore.
+///
+/// Use [property] to only return values or an aggregate of a single Property.
 class Query<T> {
   Pointer<Void> _cQuery;
   Store store;
@@ -599,6 +604,7 @@ class Query<T> {
     checkObx(bindings.obx_query_limit(_cQuery, limit));
   }
 
+  /// Returns the number of matching Objects.
   int count() {
     final ptr = allocate<Uint64>(count: 1);
     try {
@@ -609,6 +615,7 @@ class Query<T> {
     }
   }
 
+  /// Close the query and free resources.
   // TODO Document wrap with closure to fake auto close
   void close() {
     checkObx(bindings.obx_query_close(_cQuery));
@@ -681,12 +688,12 @@ class Query<T> {
     });
   }
 
-  // For testing purposes
+  /// For internal testing purposes.
   String describe() {
     return cString(bindings.obx_query_describe(_cQuery));
   }
 
-  // For testing purposes
+  /// For internal testing purposes.
   String describeParameters() {
     return cString(bindings.obx_query_describe_params(_cQuery));
   }
@@ -719,14 +726,17 @@ class Query<T> {
     }
   }
 
+  /// See [property] for details.
   IntegerPropertyQuery integerProperty(QueryProperty qp) {
     return property<IntegerPropertyQuery>(qp);
   }
 
+  /// See [property] for details.
   DoublePropertyQuery doubleProperty(QueryProperty qp) {
     return property<DoublePropertyQuery>(qp);
   }
 
+  /// See [property] for details.
   StringPropertyQuery stringProperty(QueryProperty qp) {
     return property<StringPropertyQuery>(qp);
   }

lib/src/store.dart

@@ -17,6 +17,22 @@ class Store {
   Pointer<Void> _cStore;
   final ModelDefinition defs;
 
+  /// Creates a BoxStore using the model definition from your
+  /// `objectbox.g.dart` file.
+  ///
+  /// For example in a Dart app:
+  /// ```
+  /// var store = Store(getObjectBoxModel());
+  /// ```
+  ///
+  /// Or for a Flutter app:
+  /// ```
+  /// getApplicationDocumentsDirectory().then((dir) {
+  ///   _store = Store(getObjectBoxModel(), directory: dir.path + "/objectbox");
+  /// });
+  /// ```
+  ///
+  /// See our examples for more details.
   Store(this.defs,
       {String directory, int maxDBSizeInKB, int fileMode, int maxReaders}) {
     var model = Model(defs.model);