gnucash-docs maint: Guide: Hotfix of appendix A

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash-docs/commit/9edbf251 (commit)
	from  https://github.com/Gnucash/gnucash-docs/commit/4b8578b8 (commit)



commit 9edbf2513c5d762be952e276d885f49aae57fa57
Author: Frank H. Ellenberger <frank.h.ellenberger at gmail.com>
Date:   Sat Mar 7 07:36:09 2020 +0100

    Guide: Hotfix of appendix A
    
    Replace empty pages by links;
    Replace "See .." by xrefs;
    Link contributed XSLTs
    
    New ENTITYs url-wiki-qif, url-wiki-xslt
    
    Thread: https://lists.gnucash.org/pipermail/gnucash-user/2020-March/089623.html



Summary of changes:
 docbook/gnc-docbookx.dtd |   4 +-
 guide/C/appendixa.xml    | 144 ++++++++++++++++++++++++++++++-----------------
 2 files changed, 94 insertions(+), 54 deletions(-)