Create devcontainer.json

Author: qingpeng9802

.devcontainer/devcontainer.json

@@ -0,0 +1,15 @@
+{
+  "name": "Node.js",
+  "image": "mcr.microsoft.com/devcontainers/base:ubuntu",
+  "features": {
+    "ghcr.io/devcontainers/features/node:1": {
+      "version": "20"
+    }
+  },
+  "postCreateCommand": "npm install",
+  "customizations": {
+    "vscode": {
+      "extensions": ["dbaeumer.vscode-eslint"]
+    }
+  }
+}