adding debug configuration

.gitignore

@@ -1,4 +1,5 @@
-.vscode
+.vscode/*
+!.vscode/launch.json
 node_modules
 public/index.html
 dist/*

.vscode/launch.json

@@ -0,0 +1,26 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "launch",
+            "name": "Launch Program",
+            "skipFiles": [
+                "<node_internals>/**"
+            ],
+            "program": "${workspaceFolder}/src/index.js"
+        },
+        {
+            "type": "node",
+            "request": "attach",
+            "name": "Attach by Process ID",
+            "skipFiles": [
+                "<node_internals>/**"
+            ],
+            "processId": "${command:PickProcess}"
+        }
+    ]
+}