Change Gradle installation example (#62)

Semigradsky · sargunv · commit 93c156e8028e · 2018-09-07T08:37:47.000-07:00
`compile` is obsolete
diff --git a/README.md b/README.md
@@ -42,7 +42,7 @@ repositories {
     maven { url 'http://jcenter.bintray.com' }
 }
 dependencies {
-    compile 'me.sargunvohra.lib:pokekotlin:2.3.0'
+    implementation 'me.sargunvohra.lib:pokekotlin:2.3.0'
 }
 ```
 

Original file line number	Diff line number	Diff line change
`@@ -42,7 +42,7 @@ repositories {`
`42`	`42`	`maven { url 'http://jcenter.bintray.com' }`
`43`	`43`	`}`
`44`	`44`	`dependencies {`
`45`		`- compile 'me.sargunvohra.lib:pokekotlin:2.3.0'`
	`45`	`+ implementation 'me.sargunvohra.lib:pokekotlin:2.3.0'`
`46`	`46`	`}`
`47`	`47`	```
`48`	`48`