Style fixes

guides/de-fr-xinvoice.mdx

@@ -14,8 +14,7 @@ X-Invoice covers the German and French electronic invoice standards. The integra
 <Tip>
     When referring to syntaxes, it is important to note that X-Rechnung, ZUGFeRD and Factur-X are all *semantic data models*. What this means is that they define the data that must be present in the invoice, but not the actual format of the data or the explicit name of the fields.
 
-    The [EN16931 standard](https://ec.europa.eu/digital-building-blocks/sites/display/DIGITAL/EN+16931+compliance) is the core data model for e-invoicing in the EU. It defines a list of two approved syntaxes: UN/CEFACT Cross Industry Invoice
-    ([CII](https://unece.org/trade/documents/2023/10/executive-guide-einvoicing-cross-industry-invoice)) and OpenOasis Universal Business Language ([UBL](https://docs.oasis-open.org/ubl/UBL-2.1.html)). These are the syntaxes used by this integration.
+    To implement the semantic models, there are two syntaxes approved by the EU: UN/CEFACT Cross Industry Invoice ([CII](https://unece.org/trade/documents/2023/10/executive-guide-einvoicing-cross-industry-invoice)) and OpenOasis Universal Business Language ([UBL](https://docs.oasis-open.org/ubl/UBL-2.1.html)).
 </Tip>
 
 ## Prerequisites