Provides support for the Traffic Advice Spec in IIS
Copy/paste the .well-known folder into the root directory of your website.
If you have an existing web.config file inside the .well-known directory you will need to manually merge the rewrite rules from the web.config file in this repository.
If you're using win-acme for LetsEncrypt certificates you may need to change the Validation->CleanupFolders setting in settings.json to false to prevent win-acme deleting the .well-known folder. You may also want to add the rewrite rules into win-acme's Web_Config.xml file - I'm not certain whether win-acme places its config file in the acme-challenge subdirectory or not