From c4fe2b32296a94041141991711645f4e92d02a87 Mon Sep 17 00:00:00 2001
From: bvn13 <mail@bvn13.me>
Date: Sun, 25 Sep 2022 00:27:34 +0300
Subject: [PATCH] readme updated

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index fba099e..2892f47 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@
 
 This is another one SDK for reading and writing (manipulating) GPX files.
 
+Official GPX format is on [topografix](https://www.topografix.com/GPX/1/1/) site.
+
 ## Changelog
 
 ### 2022-09-25