Added NestedRepo as a submodule

Author: YSHgroup

.gitmodules

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+[submodule "file-upload-react"]
+	path = file-upload-react
+	url = git@github-yu:YSHgroup/file-upload-react.git

client

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+Subproject commit f96799320cf4dfe032585d95d6d617ca2700322a

file-upload-react

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+{
+  "presets": ["@babel/preset-env"]
+}

server/file-receive-node-server/.babelrc

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+node_modules

server/file-receive-node-server/.gitignore

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+# Reference
+
+```bash
+  npm init 
+  npm install express cors dotenv
+  npm install  -D typescript ts-node-dev @types/express @types/cors
+  npx tsc --init
+  npm install  nodemon
+  npm install --save-dev @babel/core @babel/preset-env
+  npx babel src --out-dir dist
+  npm install --save-dev tsconfig-paths
+
+```

server/file-receive-node-server/README.md

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+{
+    "watch": ["src"],
+    "ext": ".ts,.js,.yaml",
+    "ignore": [],
+    "exec": "ts-node -r tsconfig-paths/register"
+}