Refine the README tagline by replacing "Manage context" with "Master context."

Author: robertpiosik

README.md

@@ -2,7 +2,7 @@
 
 <a href="https://marketplace.visualstudio.com/items?itemName=robertpiosik.gemini-coder" target="_blank"><img src="https://img.shields.io/badge/Install-VS_Code_Marketplace-blue" alt="Get from Visual Studio Code Marketplace" /></a> <a href="https://open-vsx.org/extension/robertpiosik/gemini-coder" target="_blank"><img src="https://img.shields.io/badge/Install-Open_VSX_Registry-a60ee5" alt="Get from Open VSX Registry" /></a> <a href="https://github.com/robertpiosik/CodeWebChat/blob/dev/LICENSE" target="_blank"><img src="https://img.shields.io/badge/License-GPL--3.0-green.svg" alt="GPL-3.0 license" /></a>
 
-Agent-free AI pair programming for VS Code, Cursor, and other forks. Manage context to guide the model and get the responses you expect—without tool calls.
+Agent-free AI pair programming for VS Code, Cursor, and other forks. Master context to guide the model to the responses you expect—without tool calls.
 
 ❤️ **Free and open-source.** _Join our [discord server](https://discord.gg/KJySXsrSX5) and get involed!_