From 3c72747def17e27e6d5a0dc3e5674e6bf85f72dc Mon Sep 17 00:00:00 2001
From: Mario Fink <knif.oiram@gmail.com>
Date: Thu, 6 May 2021 17:51:45 +0200
Subject: [PATCH] README.md: some reference

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

diff --git a/README.md b/README.md
index 84ad363..6e0b6fa 100644
--- a/README.md
+++ b/README.md
@@ -320,6 +320,7 @@ meta-data and provide these headers for usage in file output (see this
 
 ### Implementation
 
+- https://en.cppreference.com/w/
 - https://pugixml.org/
 - https://github.com/zeux/pugixml
 - https://cython.readthedocs.io/en/latest/src/userguide/wrapping_CPlusPlus.html