When you go to https://learn.microsoft.com/en-gb/aspnet/core/getting-started/?view=aspnetcore-3.1&tabs=macos for example, or any other microsoft docs, and the end of the page there is github feedback - you can open an issue directly on the site or on guthub, as the docs are published on github.
I want to do something like this for my website, where people reading articles can suggest improvements. This is a good way to make a wiki like site. Is there a way to do it?
If you just want a URL for opening a blank issue, all you need is to provide a link to https://github.com/<user-name>/<repo-name>/issues/new.
If you want the issue to have prefilled text, you can use query parameters to generate the URL. This help page describes how this can be done.
The easy way would be to create an issue template on GitHub, and then use the template parameter. As quoted in the linked article:
You can use the template query parameter to specify a template to automatically fill the issue or pull request body. The template query parameter works with templates stored in an ISSUE_TEMPLATE or PULL_REQUEST_TEMPLATE subdirectory within the root, docs/ or .github/ directory in a repository.
If a repository contains only the default pull request or issue template, any new issues or pull requests will have the default template in the body.
You can also use the other parameters to customize the issue title, text, labels, etc. This project slightly simplifies this task.