Editorial improvements for #679 (#689)

* Editorial: Structure - Added intro line and reorganized content to follow 10/20/70 structure

* Revise content structure in agent-frameworks page

Reorganized content to follow 10/20/70 structure.

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Mateo Torres <mateo@arcade.dev>

Author: github-actions[bot]

app/en/get-started/agent-frameworks/page.mdx

@@ -5,7 +5,7 @@ import { Tabs } from "nextra/components";
 
 Arcade integrates with agent frameworks and MCP clients to add tool-calling capabilities to your AI applications.
 
-These guides are for developers building AI applications who need to connect Arcade tools to their agent frameworks or MCP clients. These guides show you how to authenticate with Arcade, load tools, and execute them within your chosen framework. Each guide provides code examples and configuration steps to get you started quickly.
+These guides are for developers building AI applications who need to connect Arcade tools to their agent frameworks or MCP clients. You'll learn how to authenticate with Arcade, load tools, and execute them within your chosen framework. Each guide provides code examples and configuration steps to get you started quickly with the most popular frameworks and programming languages.
 
 ## Agent Frameworks