Dont cap commite rustbook (,.md) changes

[AveNRU]

#4406
https://doc.rust-lang.org/book/appendix-03-derivable-traits.html#partialord-and-ord-for-ordering-comparisons

does not allow link to module PartialOrd and Ord for Ordering Comparisons
in .md file because next check is write about errors
Please help
["Appendix C"]: ch18-02-trait-objects.html#using-trait-objects-that-allow-for-values-of-different-types