Fix "program path" issue

with `"program": "${workspaceRoot}\\bin\\www"`Vscode fails saying that it cannot find the program path

node-express-javascript/.vscode/launch.json

@@ -8,7 +8,7 @@
             "type": "node",
             "request": "launch",
             "name": "Launch Program",
-            "program": "${workspaceRoot}\\bin\\www"
+            "program": "${workspaceRoot}/bin/www"
         },
         {
             "type": "node",
@@ -33,4 +33,4 @@
             "internalConsoleOptions": "openOnSessionStart"
         }
     ]
-}
+}