Merge pull request #40 from robwalkerco/patch-1

Change compile to implementation in Gradle

README.md

   	```
 3. Insert the following lines inside the dependencies block in `android/app/build.gradle`:
   	```
-      compile project(':react-native-thumbnail')
+      implementation project(':react-native-thumbnail')
   	```
 
 ## Usage

android/build.gradle

 }
 
 dependencies {
-    compile 'com.facebook.react:react-native:+'
+    implementation 'com.facebook.react:react-native:+'
 }
-  
+