\not-part-first-page missing in the manual

[Caio Giovaneti de Barros]

In the Notation Manual, section 3.2.2 (Custom titles headers and 
footers), subsection "Custom layout for headers and footers", there is a 
list of procedures for the \markup block. The procedure 
\not-part-first-page exists, but is not listed. In the list, please add:

---

not-part-first-page    not first page in the book part?


---

http://lilypond.org/doc/v2.19/Documentation/notation/custom-titles-headers-and-footers.html#custom-layout-for-headers-and-footers

Thank you,
Caio Barros