Fixing the order of repository definitions in QuickStart

diff --git a/docs/quickstart.md b/docs/quickstart.md
index 77cc2f0..bd6a524 100644
--- a/docs/quickstart.md
+++ b/docs/quickstart.md
@@ -31,8 +31,8 @@
   }
 
   repositories {
-      google()
       mavenCentral()
+      google()
   }
 
   dependencies {