docs: update installation instructions for Roo Code extension to clarify development builds and troubleshooting steps

Author: hannesrudolph

docs/getting-started/installing.md

@@ -5,10 +5,8 @@ sidebar_label: Installing Roo Code
 # Installing Roo Code
 
 Roo Code is a VS Code extension that brings AI-powered coding assistance directly to your editor. Install using one of these methods:
-
 1. **VS Code Marketplace (Recommended)** - fastest method for standard VS Code users
 2. **Open VSX Registry** - for VS Code-compatible editors like VSCodium
-3. **VSIX File (Advanced)** - offline installation or specific builds
 
 ## VS Code Marketplace
 
@@ -36,20 +34,21 @@ For VS Code-compatible editors without Marketplace access (like VSCodium):
 <img src="/img/installing/installing-1.png" alt="Open VSX Registry with Roo Code extension ready to install" width="400" />
 *Open VSX Registry with Roo Code extension ready to install*
 
-## VSIX File Installation
+## Development Builds
 
-For offline installation, development testing, or specific builds:
+:::note Developer Information Only
+This section is intended only for developers contributing to Roo Code.
+:::
 
-1. Get the VSIX file:
-   * Download from [GitHub Releases](https://github.com/RooVetGit/Roo-Code/releases)
-   * For development builds: find in `bin/` after running `npm run build`
-2. In VS Code, open Extensions view
-3. Click "..." menu (top-right) and select "Install from VSIX..."
-4. Browse to and select the downloaded or generated `.vsix` file
-5. Reload VS Code if prompted
+If you're building Roo Code from source:
+
+1. Run `npm run build` in the project directory
+2. Find the generated VSIX file in the `bin/` directory
+3. In VS Code, open Extensions view and select "Install from VSIX..." from the "..." menu
+4. Browse to and select your generated `.vsix` file
 
 <img src="/img/installing/installing-2.png" alt="VS Code's Install from VSIX dialog" width="400" />
-*VS Code's "Install from VSIX" dialog with Roo Code VSIX file selected*
+*Installing a development build using VS Code's "Install from VSIX" dialog*
 
 ## Troubleshooting
 
@@ -63,9 +62,9 @@ For offline installation, development testing, or specific builds:
 * Check Output panel for errors (View → Output, select "Roo Code")
 
 **Installation Problems**
-* Try the VSIX installation method if Marketplace access fails
 * Ensure stable internet connection
 * Verify VS Code version 1.84.0 or later
+* If VS Code Marketplace is inaccessible, try the Open VSX Registry method
 
 ## Getting Support