Correct package declaratons in package-info.java files

Author: wilkinsona

src/main/java/io/spring/githubchangeloggenerator/github/payload/package-info.java

@@ -17,4 +17,4 @@
 /**
  * Classes created from JSON payloads received from GitHub.
  */
-package io.spring.githubchangeloggenerator;
+package io.spring.githubchangeloggenerator.github.payload;

src/main/java/io/spring/githubchangeloggenerator/github/service/package-info.java

@@ -17,4 +17,4 @@
 /**
  * Classes for interacting with GitHub.
  */
-package io.spring.githubchangeloggenerator;
+package io.spring.githubchangeloggenerator.github.service;