gnucash-docs maint: Guide:C:Currency: update images Part 1

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash-docs/commit/014ce27e (commit)
	from  https://github.com/Gnucash/gnucash-docs/commit/dd990803 (commit)



commit 014ce27e1969762190653b530e5d40451e59f873
Author: Frank H. Ellenberger <frank.h.ellenberger at gmail.com>
Date:   Wed Aug 4 16:55:54 2021 +0200

    Guide:C:Currency: update images Part 1



Summary of changes:
 guide/C/ch_currency.xml                            | 126 +++++++++------------
 guide/C/figures/currency_AfterGetOnlineQuotes.png  | Bin 72932 -> 48062 bytes
 guide/C/figures/currency_BeforeGetOnlineQuotes.png | Bin 52904 -> 38338 bytes
 guide/C/figures/currency_addcurr.png               | Bin 19428 -> 35411 bytes
 guide/C/figures/currency_main1.png                 | Bin 52722 -> 69994 bytes
 guide/C/figures/currency_main2.png                 | Bin 53167 -> 70131 bytes
 guide/C/figures/currency_main3.png                 | Bin 57474 -> 74032 bytes
 guide/C/figures/currency_peditor.png               | Bin 63651 -> 24004 bytes
 8 files changed, 51 insertions(+), 75 deletions(-)