Update prerelease-build.mdx (#201)

Author: mrubens

docs/advanced-usage/prerelease-build.mdx

@@ -13,7 +13,7 @@ To install Roo Code Nightly:
 1.  Open VS Code.
 2.  Access Extensions: Click the Extensions icon in the Activity Bar or press `Ctrl+Shift+X` (Windows/Linux) or `Cmd+Shift+X` (macOS).
 3.  Search for "Roo Code Nightly".
-4.  Select the prerelease extension ("Roo Code Nightly" by RooVeterinaryInc) and click **Install**.
+4.  Select the prerelease extension ("Roo Code Nightly" by Roo Code) and click **Install**.
 5.  Reload VS Code if prompted.
 
 <img src="/img/installing/installing-5.png" alt="Roo Code Nightly extension in VS Code Marketplace" width="400" />