Add Visual Studio Code badge

Author: jjonescz

README.md

@@ -21,6 +21,8 @@ Want to challenge your friend? Create activity for them and share it via a messa
 
 [![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/doablespace/ididit)
 
+[![Open in Visual Studio Code](https://open.vscode.dev/badges/open-in-vscode.svg)](https://open.vscode.dev/doablespace/ididit)
+
 1. Install Visual Studio Code, Docker Desktop and [ADB](https://developer.android.com/studio/releases/platform-tools).
 2. Install VS Code extension for Remote Container development.
 3. Reopen or clone the repository in container through the extension.