Add a step to open a folder at the beginning (#3231)

Author: bwateratmsft

package.json

@@ -2844,6 +2844,30 @@
                 ],
                 "description": "%vscode-docker.walkthrough.dockerStart.description%",
                 "steps": [
+                    {
+                        "id": "openFolder",
+                        "title": "%vscode-docker.walkthrough.dockerStart.openFolder.title%",
+                        "completionEvents": [
+                            "onCommand:workbench.action.files.openFolder"
+                        ],
+                        "when": "workspaceFolderCount == 0 && !isMac",
+                        "description": "%vscode-docker.walkthrough.dockerStart.openFolder.description%",
+                        "media": {
+                            "markdown": "resources/walkthroughs/empty.md"
+                        }
+                    },
+                    {
+                        "id": "openFolderMac",
+                        "title": "%vscode-docker.walkthrough.dockerStart.openFolder.title%",
+                        "completionEvents": [
+                            "onCommand:workbench.action.files.openFileFolder"
+                        ],
+                        "when": "workspaceFolderCount == 0 && isMac",
+                        "description": "%vscode-docker.walkthrough.dockerStart.openFolderMac.description%",
+                        "media": {
+                            "markdown": "resources/walkthroughs/empty.md"
+                        }
+                    },
                     {
                         "id": "scaffold",
                         "title": "%vscode-docker.walkthrough.dockerStart.scaffold.title%",

package.nls.json

@@ -304,12 +304,15 @@
     "vscode-docker.workspaceTrust.description": "Workspace must be trusted in order to perform relevant Docker actions.",
     "vscode-docker.walkthrough.dockerStart.title": "Getting Started with Docker",
     "vscode-docker.walkthrough.dockerStart.description": "Learn about Docker and the Docker extension for Visual Studio Code",
+    "vscode-docker.walkthrough.dockerStart.openFolder.title": "Open a Workspace Folder",
+    "vscode-docker.walkthrough.dockerStart.openFolder.description": "Open a workspace folder to get started with Docker extension features.\n[Open Folder](command:workbench.action.files.openFolder)",
+    "vscode-docker.walkthrough.dockerStart.openFolderMac.description": "Open a workspace folder to get started with Docker extension features.\n[Open Folder](command:workbench.action.files.openFileFolder)",
     "vscode-docker.walkthrough.dockerStart.scaffold.title": "Add Docker Files to Workspace",
     "vscode-docker.walkthrough.dockerStart.scaffold.description": "A Dockerfile contains the instructions to assemble an image containing your app and its dependencies. Using this image to run your app in a container creates a production-like, reproducible runtime environment.\n\nIntelliSense support for authoring your Dockerfile is provided.\n[Add Docker Files](command:vscode-docker.configure)",
     "vscode-docker.walkthrough.dockerStart.buildImage.title": "Build an Image",
     "vscode-docker.walkthrough.dockerStart.buildImage.description": "The Docker extension makes it simple to build your image.\n[Build Image](command:vscode-docker.images.build)",
     "vscode-docker.walkthrough.dockerStart.runContainer.title": "Run a Container",
-    "vscode-docker.walkthrough.dockerStart.runContainer.description": "Now that you've built your image, it's time to run your app in a container!\n[Run Image](command:vscode-docker.images.run)",
+    "vscode-docker.walkthrough.dockerStart.runContainer.description": "You can run any image on your system including those you've built with a Dockerfile.\n[Run Image](command:vscode-docker.images.run)",
     "vscode-docker.walkthrough.dockerStart.dockerExplorer.title": "Use the Docker Explorer",
     "vscode-docker.walkthrough.dockerStart.dockerExplorer.description": "The Docker Explorer makes it easy to manage, troubleshoot, and deploy containerized applications. The Docker Explorer shows a number of Docker resources such as containers, images, volumes, networks, and container registries. Also, if the [Azure Account extension](command:extension.open?%22ms-vscode.azure-account%22) is installed, you'll be able to browse your Azure Container Registries.\n\nThe right-click menu provides access to commonly used commands for each resource type.\n[Open Docker Explorer](command:workbench.view.extension.dockerView)",
     "vscode-docker.walkthrough.dockerStart.pushImage.title": "Push an Image to a Container Registry",