[Typo] Sect 5.0 "The numbering of the Python equivalent of aTree is"

[mars0i]

Section 5.0, "Numbering Tree Nodes" subsection:

Should "numbering of the" be deleted from "The numbering of the Python equivalent of aTree is"?

(It looks like the example code was split into two blocks and this wording is left over from prior to the split.)