Update README.md (#413)

Clarify language around the use of this _plugin_ and the VS Code _extension_.

Co-authored-by: Atharva <[email protected]>

README.md

@@ -44,7 +44,7 @@ To customize formatting behavior, see the [Configuration](#configuration) sectio
 
 ## Formatting with the VS Code Prettier extension directly
 
-> **Note** > [The Astro VS Code extension](https://marketplace.visualstudio.com/items?itemName=astro-build.astro-vscode) uses Prettier and this plugin (`prettier-plugin-astro`) to format your code. You will only need to install the VS Code Prettier extension separately for formatting if:
+> **Note** > [The Astro VS Code extension](https://marketplace.visualstudio.com/items?itemName=astro-build.astro-vscode) uses Prettier and this plugin (`prettier-plugin-astro`) to format your code. You will only need to install this plugin separately for formatting if:
 
 - You are not using Astro's VS Code extension.
 - You want to use features of the Prettier extension that not supported by Astro's own VS Code extension, such as the toolbar panel showing Prettier's status.