feat(format): sort contributors alphabetically

Author: JamieMason

src/constants.ts

@@ -1,7 +1,15 @@
 import { IManifestKey } from './typings';
 
 export const DEPENDENCY_TYPES: IManifestKey[] = ['dependencies', 'devDependencies', 'peerDependencies'];
-export const SORT_AZ = ['dependencies', 'devDependencies', 'files', 'keywords', 'peerDependencies', 'scripts'];
+export const SORT_AZ = [
+  'contributors',
+  'dependencies',
+  'devDependencies',
+  'files',
+  'keywords',
+  'peerDependencies',
+  'scripts'
+];
 export const SORT_FIRST = ['name', 'description', 'version', 'author'];
 export const VERSION = require('../package.json').version;
 export const GREATER = 1;