Update README, update changelog for version 2.1.0 (#28)

* Add readme section on custom key-value stores

* Bump to 2.1.0, update CHANGELOG.md

* Update README.md

Co-authored-by: Illia Romanenko <[email protected]>

* Use consistent naming in README

Co-authored-by: Illia Romanenko <[email protected]>

CHANGELOG.md

@@ -1,3 +1,8 @@
+## 2.1.0
+
+- Add support for a generic `KeyValueStore` interface.
+- Add an extensive unit-test suite.
+
 ## 2.0.1
 
 - Restore `BehaviorSubject` behavior of `HydratedSubject`.

README.md

@@ -52,15 +52,33 @@ We also support serialized classes with `hydrate` and `persist` arguments.
 ```dart
 final user$ = HydratedSubject<User>(
   "user",
-  hydrate: (String s) => User.fromJSON(s),
-  persist: (User user) => user.toJSON(),
+  hydrate: (String s) => User.fromJson(s),
+  persist: (User user) => user.toJson(),
 );
 ```
 
 ## Reliable
 
 Hydrated is mock tested with all supported types and is dogfooded by its creator.
 
+## Extensible
+
+Hydrated supports any key-value data storages -- just implement the `KeyValueStore` interface
+and you will be able to use *hive*, *flutter_secure_storage* or any other persistence solution of your choice.
+
+```dart
+class MyAwesomeKeyValueStore implements KeyValueStore {
+  /// your implementation here...
+}
+
+final user = HydratedSubject<User>(
+  "user",
+  hydrate: (String s) => User.fromJson(s),
+  persist: (User user) => user.toJson(),
+  keyValueStore: MyAwesomeKeyValueStore()
+);
+```
+
 ## Demo
 
 <img alt="demo of Hydrated BehaviorSubject between app restarts" src="https://raw.githubusercontent.com/lukepighetti/hydrated/master/doc/hydrated.gif" width="400">

pubspec.yaml

@@ -1,6 +1,6 @@
 name: hydrated
 description: An automatically persisted BehaviorSubject with simple hydration for Flutter. Intended to be used with the BLoC pattern.
-version: 2.0.1
+version: 2.1.0
 homepage: https://github.com/solid-software/hydrated
 
 environment: