WIP: Add create file step

Author: andyleejordan

package.json

@@ -44,7 +44,8 @@
     "onCommand:PowerShell.EnableISEMode",
     "onCommand:PowerShell.DisableISEMode",
     "onCommand:PowerShell.ToggleISEMode",
-    "onView:PowerShellCommands"
+    "onView:PowerShellCommands",
+    "onWalkthrough:powershellWalkthrough"
   ],
   "dependencies": {
     "@vscode/extension-telemetry": "~0.6.2",
@@ -89,6 +90,25 @@
     "publish": "vsce publish"
   },
   "contributes": {
+    "walkthroughs": [
+      {
+        "id": "powershellWalkthrough",
+        "title": "PowerShell Walkthrough",
+        "description": "Learn how to use PowerShell in Visual Studio Code",
+        "steps": [
+          {
+            "id": "powershell.createPowerShellFile",
+            "title": "Create a PowerShell file",
+            "description": "[Create](command:toSide:workbench.action.files.newUntitledFile?%7B%22languageId%22%3A%22powershell%22%7D) a Python file - make sure to save it as \".py\".\n[Create PowerShell File](command:toSide:workbench.action.files.newUntitledFile?%7B%22languageId%22%3A%22powershell%22%7D)",
+            "media": {
+              "image": "media/PowerShell_Preview_Icon.png",
+              "altText": "PowerShell Icon"
+            },
+            "when": ""
+          }
+        ]
+      }
+    ],
     "breakpoints": [
       {
         "language": "powershell"