title: gh-pages -d build fails on 'npm run deploy'
body: <p>I am trying to deploy my react app to the GitHub pages but I have encountered the following error:</p>
  
  <pre><code>The build folder is ready to be deployed.
  To publish it at https://jatinkumarg.github.io/personal-portfolio, run:
  
    npm run deploy
  
  
  &gt; personal-portfolio@0.1.0 deploy C:\react-projects\personal-portfolio
  &gt; gh-pages -d build
  
  Cloning into 'node_modules\gh-pages\.cache\git@github.com!jatinkumarg!personal-portfolio.git'...
  git@github.com: Permission denied (publickey).
  fatal: Could not read from remote repository.
  
  Please make sure you have the correct access rights
  and the repository exists.
  
  npm ERR! code ELIFECYCLE
  npm ERR! errno 1
  npm ERR! personal-portfolio@0.1.0 deploy: `gh-pages -d build`
  npm ERR! Exit status 1
  npm ERR!
  npm ERR! Failed at the personal-portfolio@0.1.0 deploy script.
  npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
  
  npm ERR! A complete log of this run can be found in:
  npm ERR!     C:\Users\jatin\AppData\Roaming\npm-cache\_logs\2019-07-23T04_40_54_788Z-debug.log
  </code></pre>
  
  <ul>
  <li>I have already set-up and tested my ssh key, it works fine.</li>
  <li>There is only one remote url i.e. origin(SSH)</li>
  </ul>
  
  <p>This is my package.json</p>
  
  <pre><code>{
    "name": "personal-portfolio",
    "version": "0.1.0",
    "homepage": "https://jatinkumarg.github.io/personal-portfolio",
    "dependencies": {
      "jquery": "^3.4.1",
      "json-loader": "^0.5.7",
      "react": "^15.5.4",
      "react-dom": "^15.5.4"
    },
    "devDependencies": {
      "gh-pages": "^1.0.0",
      "react-scripts": "1.0.1"
    },
    "scripts": {
      "predeploy": "npm run build",
      "deploy": "gh-pages -d build",
      "start": "react-scripts start",
      "build": "react-scripts build",
      "test": "react-scripts test --env=jsdom",
      "eject": "react-scripts eject"
    }
  }
  </code></pre>
  
  <p>At this point, I have no idea what's wrong. Can anyone please help me with this issue?</p>