img fix + knowledge_tool

- A knowledge_tool in-depth explanation was missing from docs/architecture.md#tools
- Other fixes

README.md

@@ -55,7 +55,7 @@
 - No coding is required, only prompting and communication skills.
 - With a solid system prompt, the framework is reliable even with small models, including precise tool usage.
 
-![Agent 1 System Load](/docs/res/ui_screen1.png)
+![Agent 1 System Load](/docs/res/ui_screen.png)
 
 ## Keep in mind
 1. **Agent Zero can be dangerous!**
@@ -85,17 +85,26 @@ If you cannot provide all the necessary conditions or API keys, just change the
 ![Time example](/docs/res/time_example.jpg)
 
 ## Setup
-A detailed setup guide with a video can be found in /docs/installation.md. Open the [Documentation](docs/installation.md#in-depth-guide-for-windows-and-macos).
+A detailed setup guide for Windows, macOS and Linux with a video can be found in the new Agent Zero Documentation at [this page](docs/installation.md#in-depth-guide-for-windows-and-macos).
 
-## Changelog [since version 0.7]
+## Consult the Documentation
+The documentation dives deep into the framework and its features. It is a good place to start if you are new to Agent Zero. Click [here](docs/README.md) to see the Documentation.
 
-### v0.7.1
+## Coming up
+- **Preinstalled bundles**
+- **Knowledge tool open-sourcing and web scraping tool**
+- **User interaction refinements**
+- **In-context switchable LLMs**
+
+### Changelog [since version 0.7]
+
+#### v0.7.1
 - **Bug Fixes**
 - **Persistent Chats** - Serialized to /tmp/chats and automatically loaded in run_ui.py on startup
 - **Preinstalled binaries and bundler scripts**
 - **Documentation stack merged into the repository**
 
-### New in version 0.7
+#### New in version 0.7
 > - UI Revamp
 > - Auto Memory
 > - Instruments
@@ -105,9 +114,4 @@ A detailed setup guide with a video can be found in /docs/installation.md. Open
 > [!NOTE]  
 > **Changes to launch files since v0.6:**  
 > - main.py file has been replaced with run_ui.py (webui) and run_cli.py (terminal) launch files.
-> - configuration has been moved to initialize.py for both webui and terminal launch files.
-
-## Coming up
-- **Preinstalled bundles**
-- **Knowledge tool improvements and web scraping tool**
-- **User interaction refinements**
+> - configuration has been moved to initialize.py for both webui and terminal launch files.

docs/architecture.md

@@ -69,6 +69,18 @@ The memory system is a critical component of Agent Zero, enabling the agent to l
 | memory_tool | Enables agents to save, load, delete and forget information from memory. |
 | webpage_content_tool | Enables agents to fetch and analyze the text content of webpages. |
 
+- **Knowledge Tool:** The `knowledge_tool` uses DuckDuckGo and Perplexity APIs to search the web and retrieve information. It can also search the local knowledge base and memory for relevant information. The tool returns a summary of the information, which can be used by the agent to make decisions or answer questions.
+
+> [!TIP]
+> The Perplexity API key is the only service recommended for a full experience of 
+> Agent Zero, but you can use DuckDuckGo by leaving the Perplexity API key value 
+> empty. DuckDuckGo usage in Agent Zero is free of charge but has its rate limits.
+  
+> [!NOTE]  
+> It's important to note that the DuckDuckGo API is not as powerful as Perplexity 
+> and may not return accurate or relevant results for some queries. The Perplexity 
+> API is yet to be replaced with an open-source alternative.
+
 - **Custom Tools:** Users can create custom tools to extend Agent Zero's capabilities. Custom tools can be integrated into the framework by defining a tool specification, which includes the tool's prompt to be placed in `/prompts/$FOLDERNAME/agent.system.tool.$TOOLNAME.md`, as further detailed [here](#adding-tools).
 
 - **Tools vs. Instruments:** Tools are always present in system prompt, so you should keep them to minimum. To save yourself some tokens, use the [Instruments module](#adding-instruments) to call custom scripts or functions.

docs/usage.md

@@ -74,7 +74,7 @@ app.run(request_handler=NoRequestLoggingWSGIRequestHandler, host="0.0.0.0", port
 
 ## Using code_execution_tool outside of the Docker Container
 > [!CAUTION]
-> VERY IMPORTANT NOTICE: We believe in safe and ethical AI development, and highly 
+> We believe in safe and ethical AI development, and highly 
 > suggest you to use the Docker container designed for running Agent Zero.
 > This is a dangerous and untested feature, and we are not responsible for any damage 
 > or illegal activities or legal liabilities caused by the use of this feature.