Add open links (#1379)

Author: bamurtaugh

.devcontainer/README.md

@@ -1,9 +1,13 @@
 # Dev Container for vscode-dev-containers
 
+[![Open in Remote - Containers](https://img.shields.io/static/v1?label=Remote%20-%20Containers&message=Open&color=blue&logo=visualstudiocode)](https://vscode.dev/redirect?url=vscode://ms-vscode-remote.remote-containers/cloneInVolume?url=https://github.com/microsoft/vscode-dev-containers)
+
 This folder includes a configuration for building dev containers or reviewing PRs inside of another dev container - "Inception" style 😎. It includes the Moby/Docker and a desktop with VS Code stable, insiders, and the Remote - Containers extension installed for quick testing of local scenarios when needed.
 
 A web-based desktop viewer is automatically forwarded. The login password is `vscode`.
 
 Run <kbd>F1</kbd> / <kbd>Ctrl/Cmd</kbd> + <kbd>Shift</kbd> + <kbd>p</kbd> and select **Ports: Focus on Ports View** to see the address to use to connect to it.
 
+If you already have VS Code and Docker installed, you can click the badge above or [here](https://vscode.dev/redirect?url=vscode://ms-vscode-remote.remote-containers/cloneInVolume?url=https://github.com/microsoft/vscode-dev-containers) to get started. Clicking these links will cause VS Code to automatically install the Remote - Containers extension if needed, clone the source code into a container volume, and spin up a dev container for use.
+
 However, most likely, this was not what you were looking for when you came to this repository. Actual dev container definitions can be found [under the `/containers` folder](https://github.com/microsoft/vscode-dev-containers/tree/main/containers) in this repository.