The website is generated using Hugo. Simply download the Hugo executable (Currently used version on the server: 0.31.1 )
You have to add hugo in your environment variables under Path:
For example: C:\Users\YourName\Desktop\IT\Installations\hugo_0.31.1_Windows-64bit
In your command prompt go to the main directory of the repository (where this README.md file is) and execute "hugo server".
For example: C:\Users\YourName\Desktop\IT\Githubprojects\judaicalink-site>hugo server
Afterwards, you can browse the website locally under http://localhost:1313
Watch the console for errors if your changes do not show up as expected.
When you are done, commit your changes to your forked repository and send the pull request.