document bot architecture (#195)

Author: alfredfrancis

docs/05-architecture.md

@@ -0,0 +1,26 @@
+# Architecture Overview
+
+This document provides a comprehensive overview of the AI Chatbot Framework's architecture, explaining its key components, interactions, and data flow.
+
+## High Level Architecture
+
+![high_level_architecture.png](screenshots/high_level_architecture.png)
+
+## Components 
+
+### Dialogue Manager
+
+The Dialogue Manager is the core component responsible for processing user messages and managing conversational state. 
+It orchestrates the interaction between various components to understand user intent, extract parameters, maintain conversation context, and generate appropriate responses.
+
+### NLU Pipeline
+
+The NLU Pipeline is responsible for natural language understanding (NLU) tasks. 
+
+### Memory Saver
+
+The Memory Saver component is responsible for saving and retrieving conversation state.
+
+### Channels
+
+The Channels component is responsible for handling communication with different messaging channels (e.g., Facebook Messenger, Slack, REST API, etc.).

docs/README.md

@@ -18,3 +18,6 @@ Welcome to the AI Chatbot Framework documentation. This documentation provides c
    - [Chat Widget](04-integrating-with-channels.md#chat-widget)
    - [REST API](04-integrating-with-channels.md#rest-api)
    - [Facebook Messenger](04-integrating-with-channels.md#facebook-messenger)
+
+5. [Architecture Overview](05-architecture.md)
+   - [High Level Architecture](05-architecture.md#high-level-architecture)