Fix typo in README (#14)

README.md

@@ -6,17 +6,17 @@ flutter client for [ezyfox server](https://github.com/youngmonkeys/ezyfox-server
 
 <img src="https://raw.githubusercontent.com/youngmonkeys/ezyfox-server-flutter-client/master/images/flutter-sdk.png" />
 
-# Offical documentation
+# Official documentation
 
 [https://youngmonkeys.org/ezyfox-flutter-client-sdk/](https://youngmonkeys.org/ezyfox-flutter-client-sdk/)
 
 # Prepare
 
 1. Download and install [JDK 8](https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html)
 2. Download and install [Android Studio](https://developer.android.com/studio)
-3. Download and install [Xcode](https://developer.apple.com/xcode/)
+3. Download and install [Xcode](https://developer.apple.com/xcode)
 4. Download and install [Intellij and Flutter plugin](https://www.jetbrains.com/idea/download)
-5. Download and instal [Flutter SDK](https://flutter.dev/docs/get-started/install)
+5. Download and install [Flutter SDK](https://flutter.dev/docs/get-started/install)
 
 # How to test?