gnucash-docs maint: Multiple changes pushed

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash-docs/commit/1c50b6b0 (commit)
	 via  https://github.com/Gnucash/gnucash-docs/commit/67a265ed (commit)
	from  https://github.com/Gnucash/gnucash-docs/commit/3f4f565e (commit)



commit 1c50b6b0f6f58f79d1352385666bef6a38432f71
Author: Frank H. Ellenberger <frank.h.ellenberger at gmail.com>
Date:   Tue Jun 22 22:12:48 2021 +0200

    Help/C: Image optimization

commit 67a265edd27f0afb4c07458ec87d79028e6f836d
Author: Frank H. Ellenberger <frank.h.ellenberger at gmail.com>
Date:   Tue Jun 22 22:09:53 2021 +0200

    Help/C:update srccredit for Main-window-callouts



Summary of changes:
 help/C/Help_ch_GUIMenus.xml                        |   4 ++--
 .../Help_CSV_Import_transactions_Preview.png       | Bin 106312 -> 122723 bytes
 help/C/figures/Help_Choose_Export_Settings.png     | Bin 38641 -> 44940 bytes
 help/C/figures/Help_Import_QIF_Druid.png           | Bin 52989 -> 61802 bytes
 4 files changed, 2 insertions(+), 2 deletions(-)