bump docs - merchant - Merchant backend to process payments, run by merchants

commit 73c7f55f10735fc3c8ca13820a2d7eb8e5d295d7
parent 63544a242cc25b7fa12c15658946218d674a8bf3
Author: Christian Grothoff <christian@grothoff.org>
Date:   Mon, 22 Dec 2025 21:11:43 +0100

bump docs

	merchant Merchant backend to process payments, run by merchants
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