updating dir structure in the README

README.md

@@ -82,7 +82,10 @@ Example users are in the `vars/secure` directory:
 * [*admin_users* will be realized on every server](/vars/secure/users.yml)
 
 
-     ```
+```
+cloudformation_templates  <-- official edX cloudformation templates
+│   └── examples          <-- example templates
+└── playbooks
      edxapp_prod.yml      <-- example production environment playbook
      edxapp_stage.yml     <-- example stage environment playbook
      edxapp_custom.yml    <-- example custom environment playbook
@@ -93,12 +96,17 @@ Example users are in the `vars/secure` directory:
     ├── roles             <-- edX services
     │   ├── common        <-- tasks that are run for all roles
     │   │   └── tasks
-     │   └── lms 
-     │       ├── tasks    <-- tasks that are run to setup an LMS
+    │   ├── lms
+    │   │   ├── tasks     <-- tasks that are run to setup an LMS
+    │   │   └── templates
+    │   └── nginx
+    │       ├── handlers
+    │       ├── tasks
     │       └── templates
     └── vars             <-- public variable definitions
         └── secure       <-- secure variables (example)
-     ```
+
+```
 
 
 ### Installation