BigInt by amirhshahbazi · Pull Request #120 · javascript-tutorial/fa.javascript.info

You don't need to make a new pull request for any changes you make. you can add more commits by pushing to the BigInt branch on your fork.
In addition to that, please read the Translation Tips:

Please keep line breaks and paragraphs "as is": don't add new lines and don't remove existing ones. Makes it easy to merge future changes from the English version into the translation.

You've removed the newline on line 8, please add it back.