gnucash-docs maint: Mark guides import chapter as outdated

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash-docs/commit/6094099d (commit)
	from  https://github.com/Gnucash/gnucash-docs/commit/913549d7 (commit)



commit 6094099d095004ea150089f60cddef0e3dcca508
Author: Frank H. Ellenberger <frank.h.ellenberger at gmail.com>
Date:   Wed Jul 14 20:04:47 2021 +0200

    Mark guides import chapter as outdated
    
    2 Davids had worked simultanous on the same file



Summary of changes:
 guide/C/ch_importing.xml | 10 ++++++++++
 1 file changed, 10 insertions(+)