readme [ci skip]

README.md

@@ -1,6 +1,26 @@
 # RxKeyboard
-Android reactiveX software keyboard
+RxJava2 bindings for android keyboard's `InputMethodManager`
 
 [![Build Status](https://img.shields.io/travis/g4s8/RxKeyboard.svg?style=flat-square)](https://travis-ci.org/g4s8/RxKeyboard)
 [![License](https://img.shields.io/github/license/g4s8/RxKeyboard.svg?style=flat-square)](https://github.com/g4s8/RxKeyboard/blob/master/LICENSE)
 [![Bintray](https://img.shields.io/bintray/v/g4s8/maven-android/com.g4s8.rxkeyboard.svg?style=flat-square)](https://bintray.com/g4s8/maven-android/com.g4s8.rxkeyboard/_latestVersion)
+
+## Dependencies
+depends on RxJava2 '2.0.7' version:
+```gradle
+dependencies {
+  "io.reactivex.rxjava2:rxjava:2.0.7"
+}
+```
+
+## Usage
+### show android keyboard async
+```java
+final RxSoftKeyboard keyboard = new RxAndroidSoftKeyboard(context);
+keyboard.show(editTex, ShowFlags.NONE).subscribe(() -> callback());
+```
+### hide android keyboard async
+```java
+final RxSoftKeyboard keyboard = new RxAndroidSoftKeyboard(context);
+keyboard.hide(view.getWindowToken(), ShowFlags.NONE).subscribe(() -> callback());
+```