Also, it is misleading for the end of the help to link to <https://help.launchpad.net/Packaging/PPA>, since that page is entirely about publishing software to a PPA, not about installing software from it.
Also, it is misleading for the end of the help to link to <https:/ /help.launchpad .net/Packaging/ PPA>, since that page is entirely about publishing software to a PPA, not about installing software from it.