[shared_preferences] fix typo in readme (#2477)

diff --git a/packages/shared_preferences/shared_preferences/CHANGELOG.md b/packages/shared_preferences/shared_preferences/CHANGELOG.md
index 7c8b275..f74275d 100644
--- a/packages/shared_preferences/shared_preferences/CHANGELOG.md
+++ b/packages/shared_preferences/shared_preferences/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.5.6+1
+
+* Updated README
+
 ## 0.5.6
 
 * Support `web` by default.
diff --git a/packages/shared_preferences/shared_preferences/README.md b/packages/shared_preferences/shared_preferences/README.md
index dfd4493..411fa2a 100644
--- a/packages/shared_preferences/shared_preferences/README.md
+++ b/packages/shared_preferences/shared_preferences/README.md
@@ -42,5 +42,5 @@
 You can populate `SharedPreferences` with initial values in your tests by running this code:
 
 ```dart
-SharedPrefernces.setMockInitialValues (Map<String, dynamic> values);
+SharedPreferences.setMockInitialValues (Map<String, dynamic> values);
 ```
diff --git a/packages/shared_preferences/shared_preferences/pubspec.yaml b/packages/shared_preferences/shared_preferences/pubspec.yaml
index a2f486e..64e0fae 100644
--- a/packages/shared_preferences/shared_preferences/pubspec.yaml
+++ b/packages/shared_preferences/shared_preferences/pubspec.yaml
@@ -2,7 +2,7 @@
 description: Flutter plugin for reading and writing simple key-value pairs.
   Wraps NSUserDefaults on iOS and SharedPreferences on Android.
 homepage: https://github.com/flutter/plugins/tree/master/packages/shared_preferences/shared_preferences
-version: 0.5.6
+version: 0.5.6+1
 
 flutter:
   plugin: