Made changes in contenttypes module

Author: rohitmishra209

config/index.js

@@ -9,6 +9,6 @@ module.exports = {
   password: '',
   source_stack: '', // Stack API KEY
   access_token: '', // Stack ACCESS TOKEN
-  content_types_list: [], //Content_type_list is the key to specify the specific contenttypes, Example: ['landing', 'header', 'product', 'category'] 
-  assetsdelete: true,  //Bollean value, Example: true or false
+  content_types_list: '', //optional: Content_type_list is the key to specify the specific contenttypes, Example: ['landing', 'header', 'product', 'category'] 
+  assetsdelete: true,  //Default set :true Example: true or false
 };

package.json

@@ -1,6 +1,6 @@
 {
   "name": "contentstack-bulk-delete",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "Contentstack's Bulk Delete Utility allows you to perform bulk delete operations. That means, that it is possible to delete all content types or a specific content type(s), and all assets in just one operation.",
   "homepage": "",
   "author": {