Merge pull request json-schema-form#13 from EagerIO/docs-post-process-function-tweak

A couple fixes to the "Post process function" section of the docs

Author: davidlgj

docs/index.md

@@ -474,9 +474,9 @@ before it's rendered, and should return a form.
 
 Ex. Reverse all forms
 ```javascript
-angular.module('myModule').config(function(schemaFormProvider){
+angular.module('myModule', ['schemaForm']).config(function(schemaFormProvider){
 
- schemaForm.postProcess(function(form){
+ schemaFormProvider.postProcess(function(form){
  form.reverse();
  return form;
  })