Update README.md

Author: ceryle

README.md

@@ -1 +1,77 @@
-# FitGridView
+# FitGridView,
+
+![poster](https://cloud.githubusercontent.com/assets/20969019/21449819/b230b9a4-c8f9-11e6-8620-7a2297f96d71.png)
+
+##Preview
+![preview](https://cloud.githubusercontent.com/assets/20969019/21449604/9b90ceac-c8f7-11e6-9c32-3c94b24f8e15.gif)
+
+
+## Installation
+
+#### Gradle
+
+Add it to your build.gradle with:
+```gradle
+allprojects {
+    repositories {
+        maven { url "https://jitpack.io" }
+    }
+}
+```
+and:
+
+```gradle
+dependencies {
+    compile 'com.github.ceryle:FitGridView:v1.0'
+}
+```
+
+## Customization
+
+### Some Attributes
+
+#### Segmented Button
+| Option Name      				| Format                 | Description                              |
+| ---------------- 				| ---------------------- | -----------------------------            |
+| app:row         | `integer`               |  number of rows    |
+| app:column       | `integer`               | number of colums |
+
+
+
+#### Examples
+
+##### In Xml Layout
+```xml
+<co.ceryle.fitgridview.FitGridView
+     android:id="@+id/gridView"
+     android:layout_width="match_parent"
+     android:layout_height="match_parent"
+     android:listSelector="@android:color/transparent"
+     app:column="3"
+     app:row="4"/>
+```
+
+##### In Java
+```java
+@Override
+protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.activity_main);
+
+    gridView = (FitGridView) findViewById(R.id.gridView);
+    gridView.setFitGridAdapter(new Adapter(this));
+        
+    // you can change grid view size any time. don't forget calling update method.
+    changeSize(4, 4);
+}
+        
+private void changeSize(int r, int c) {
+     gridView.setRow(r);
+     gridView.setColumn(c);
+     gridView.update();
+}
+```
+
+## License
+
+This project is licensed under the Apache License Version 2.0 - see the [LICENSE.md](LICENSE.md) file for details