* Rewrote creating root node paragraph
I didn't like the sentence starting "It is equivalent" when it wasn't entirely clear what "It" was, so I edited. I'm not sure it's a great improvement!
* Changed reference to "disk" to "file"
* Fix grammar
"The example" sounds like it's referring to an example that has already been introduced
* Fix "like so" grammar
"Like so" is not used very often
* Remove "exactly"
"see how it works exactly" sounds odd, "see exactly how it works" is better, but to be honest it sounds best without "exactly" at all!
* Add missing "the"
John Veness