How to upload my "package_CUSTOM_index.json " to the unofficial 3rd party URL

I have made a json link and the hardware specification folder is made accordingly to the tutorial given below:

My json link works fine when I use it and I'm able to import my custom board in the Arduino IDE.

Now how do I post my json link to the Unofficial list of 3rd party board support urls given below :

  • Sign up for a GitHub account if you don't already have one.
  • Log in to GitHub
  • Go to Unofficial list of 3rd party boards support urls · arduino/Arduino Wiki · GitHub
  • Click the "Edit" button.
  • Make your edit, using the other entries as a guide for the formatting.
  • Click the "Preview" tab to be sure everything is correct.
  • In the "Edit Message" field, enter a short description explaining the purpose of your edit.
  • Click the "Save Page" button.