Update 'README.md'

README.md

@@ -1,3 +1,16 @@
 # okhttp
 
-okhttp
+okhttp
+
+## Usage
+
+```
+
+
+    <dependency>
+      <groupId>com.squareup.okhttp3</groupId>
+      <artifactId>okhttp</artifactId>
+      <version>3.11.0</version>
+      <scope>test</scope>
+    </dependency>
+```