title: tsconfig.json gets reset after yarn start React app
body: <p>I created my React app with <code>create-react-app app_name --typescript</code>. Since Typescript doesn't support NODE_PATH. I'm trying to use baseUrl in <code>tsconfig.json</code>.</p>
  
  <p>However, every time running <code>yarn start</code> after putting <code>"baseUrl": "src"</code> in <code>"compilerOptions"</code>, the baseUrl gets gone. I feel like <code>yarn start</code> resets <code>tsconfig.json</code>.</p>
  
  <p>How can I stop it to reset the file?</p>
  
  <pre><code>**tsconfig.json**
  {
    "compilerOptions": {
      "target": "es6",
      "allowJs": true,
      "skipLibCheck": false,
      "esModuleInterop": true,
      "allowSyntheticDefaultImports": true,
      "strict": false,
      "forceConsistentCasingInFileNames": true,
      "module": "esnext",
      "moduleResolution": "node",
      "resolveJsonModule": true,
      "isolatedModules": true,
      "noEmit": true,
      "jsx": "preserve"
    },
    "include": ["src"]
  }
  </code></pre>