Fix url exceeding div width

[anselumana]

Issue Description

Page: https://docs.openzeppelin.com/contracts/4.x/erc1155

In the above page (under section #constructing_an_erc1155_token_contract) there is a url that exceedes the length of the container div, overlapping with the side text when scrolling down.

The url is https://game.example/api/item/0000000000000000000000000000000000000000000000000000000000000002.json

Here's the screenshot.