From 4937609000fb4e7b9624435f8632ce6db6a9e233 Mon Sep 17 00:00:00 2001
From: barredterra <14891507+barredterra@users.noreply.github.com>
Date: Mon, 9 Sep 2024 19:23:00 +0200
Subject: [PATCH] docs: add supported standards

---
 README.md | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 40679ba..f5bc636 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,16 @@
 ## European e-Invoice
 
-Create and import european e-invoices with ERPNext
+Create and import e-invoices with ERPNext.
+
+In particular, this app supports reading and writing electronic invoices according to the following standards:
+
+- ZUGFeRD
+- XRechnung
+- Factur-X
+- UN/CEFACT Cross-Industry-Invoice (CII)
+- EN16931
+
+This app cannot read or write UBL invoices. It also does not provide any special way of sending or receiving e-invoices (e.g. Peppol). Instead, it focuses on the conversion between ERPNext's internal data model and the XML format of the above standards.
 
 > [!WARNING]
 > This app is under active development and should **not** yet be used in production environments. Things can **break and change at any time**.