In this PR I have made a few types of suggested changes to the program and README text.
Spellings - words like cartridge and photo
Phrasing: adverbs - some of the verbiage reads rather awkward to me and I suspect also to most native English speakers. In particular putting an adverb in between a transitive verb and its direct object doesn't seem to flow. Example: "read carefully the following" -> "carefully read the following" or "read the following carefully"
Phrasing: tone/other - some of the other suggestions I've made simply seem better to me.
Technical: ISA is a specific 62-pin slot that was found on PC compatibles. The X16 has a similarly-shaped 60-pin expansion slot, but it's not ISA.
In this PR I have made a few types of suggested changes to the program and README text.