You can simply clone it and make changes according to you.
$ git clone https://github.com/kartikeyonweb/portfolio.git
# Go into the repository
$ cd portfolio
# Remove current origin repository
$ git remote remove origin
Then you can install the dependencies using NPM:
# Install dependencies
$ npm install
# Start development server
$ npm start
Congrats For your New Portfolio.
Thanks to Netlify for free hosting Service.