Improve launch.json

Author: zobo

.vscode/launch.json

@@ -12,16 +12,18 @@
         "NODE_ENV": "development"
       },
       "sourceMaps": true,
-      "outFiles": ["${workspaceFolder}/out/**/*.js"]
+      "outFiles": ["${workspaceFolder}/out/**/*.js"],
+      "preLaunchTask": "npm: watch"
     },
     {
       "name": "Launch Extension",
       "type": "extensionHost",
       "request": "launch",
       "runtimeExecutable": "${execPath}",
-      "args": ["--extensionDevelopmentPath=${workspaceRoot}"],
+      "args": ["--extensionDevelopmentPath=${workspaceRoot}", "${workspaceFolder}/testproject"],
       "sourceMaps": true,
-      "outFiles": ["${workspaceFolder}/out/**/*.js"]
+      "outFiles": ["${workspaceFolder}/out/**/*.js"],
+      "preLaunchTask": "npm: watch"
     },
     {
       "name": "Mocha",