BASLOAD Docs should be included or linked at main X16 doc repo

[ahenry3068]

Stefan's excellent document on BASLOAD should be available from the Main documentation page.

https://github.com/stefan-b-jakobsson/basload-rom/blob/master/docs/manual.pdf

[tomxp411]

100% agree. The question is whether we download a copy of Stefan's docs and include it as a chapter in the PRG, or whether we link to it as a separate file.

I think adding a hyperlink to Stefan's Readme to start with is a good first step, then we can look at importing his instructions and formatting them to be consistent with the X16 documentation's style.