Update structure doc

pages/structure.md

@@ -1,17 +1,48 @@
-# Known the structure
+# Known the Structure
 
-![CostaPy structure](../images/structure.png "CostaPy have a 4 type of file")
+This section outlines the directory structure for the framework and provides descriptions for each directory and its purpose. Understanding this structure is crucial for configuring and extending the framework effectively.
 
-It have a 4 type of file:
-- Main
-- Core
-- Configuration
-- Content
+## Directory Overview
 
-`Main` is the file that you will run with the Python.
+### `core`
+This directory contains static directory and templating core scripts. It is a critical part of the framework with the following contents:
 
-`Core` is the place to put the extension script.
+- **`staticdir` (required):**
+  - Used by the launcher `costa.py` to merge a static handler from directory configuration.
+- **`template` (required):**
+  - Supports `config.directory` by adding a static handler from templates.
+- **`html` (optional):**
+  - Provides a HTML templating. Will not be used if you do not have a template.
+
+### `config`
+This directory holds configuration files for the framework.
+
+### `script` (optional)
+A directory to store additional patches or scripts for extending the functionality of the framework.
+
+### `procedure` (optional)
+Contains stable, update-less functions. One or more modules might use these functions.
+
+### `modules`
+A mandatory directory that contains the modules of the framework. This is the core functionality of your application.
+
+### `static` (optional)
+A front-end static directory. This directory can hold assets like:
+- CSS
+- JavaScript
+- Fonts
+- Other front-end libraries
+
+### `templates` (optional)
+A front-end directory specifically for templates. Use this to organize reusable front-end templates.
+
+### `pages` (optional)
+A front-end directory for pages. Use this to organize individual front-end pages.
+
+## Notes
+- Required directories such as `core`, `config`, and `modules` must be present for the framework to function properly.
+- Optional directories like `script`, `procedure`, `static`, `templates`, and `pages` can be added as needed based on the project's requirements.
+
+By adhering to this structure, you ensure clarity, consistency, and modularity in your framework.
 
-`Configuration` is for configuration.
 
-and `Content` is the place for you to create a content.