From c07f9f484e8f3a25a1f724e0e2fda26b2acf9b05 Mon Sep 17 00:00:00 2001
From: Juerd Waalboer <juerd@tnx.nl>
Date: Wed, 20 Sep 2023 20:20:46 +0200
Subject: [PATCH] update README

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index ab4807b..e96f502 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,9 @@ This should be done only once. RevBank will increment the number. If you do
 wish to start a new sequence, you should clear `.revbank.undo` first if there
 is any chance that the sequences will overlap.
 
+(Note: letters in transaction IDs are supported, but may not be compatible with
+local laws or external accounting software.)
+
 ### Other configuration
 
 - `revbank.plugins`: enable or disable plugins here.