Update README to highlight cost efficiency in the toolkit description

Author: robertpiosik

README.md

@@ -12,7 +12,7 @@
   <a href="https://marketplace.visualstudio.com/items?itemName=robertpiosik.gemini-coder"><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"><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"><img src="https://img.shields.io/badge/License-GPL--3.0-green.svg" alt="GPL-3.0 license" /></a>
 </p>
 
-Code Web Chat is a free and open-source AI coding toolkit. You can use CWC in **VS Code** family of editors (Cursor, Antigravity, VSCodium etc.) for a **much faster\*** development experience.
+Code Web Chat is a free and open-source AI coding toolkit. You can use CWC in **VS Code** family of editors (Cursor, Antigravity, VSCodium etc.) for a **much faster and cost efficient\*** development experience.
 
 <sup>\* Compared to coding agents.</sub>