Update readme

Author: kaidesu

README.md

@@ -4,6 +4,7 @@ Provides Visual Studio Code support for the [Ghost](https://ghostlang.org/) prog
 
 ## Features
 - Syntax highlighting
+- Snippets
 
 ## Usage
 You will need to install [Visual Studio Code](https://code.visualstudio.com/) >= `1.44`. In the command palette (Cmd+Shift+P) select Install Extension and choose `Ghost`. You can also install the extension from the [Marketplace](https://marketplace.visualstudio.com/vscode). Open any `.ghost` file in VS Code.