removed scaffold_tree.png and restored more detailed description. Thanks Nico

Author: mdipierro

docs/chapter-05.rst

@@ -348,7 +348,29 @@ create a new clone of it manually or using the Dashboard.
 
 Here is the tree structure of the ``_scaffold`` app:
 
-.. image:: images/scaffold_tree.png
+::
+
+   ├── __init__.py          # imports everything else
+   ├── common.py            # defines useful objects
+   ├── controllers.py       # your actions
+   ├── databases            # your sqlite databases and metadata
+   ├── models.py            # your pyDAL table model
+   ├── settings.py          # any settings used by the app
+   ├── settings_private.py  # (optional) settings that you want to keep private
+   ├── static               # static files
+   │   ├── css              # CSS files, we ship bulma because it is JS agnostic
+   │   │   └── no.css       # we used bulma.css in the past
+   │   ├── favicon.ico
+   │   └── js               # JS files, we ship with these but you can replace them
+   │       └── utils.js
+   ├── tasks.py
+   ├── templates            # your templates go here
+   │   ├── auth.html        # the auth page for register/logic/etc (uses vue)
+   │   ├── generic.html     # a general purpose template
+   │   ├── index.html
+   │   └── layout.html      # a bulma layout example
+   └── translations         # internationalization/pluralization files go here
+       └── it.json          # py4web internationalization/pluralization files are in JSON, this is an italian example
 
 The scaffold app contains an example of a more complex action: