From 6a57043c85c0379f711f670821afde4bbb19ac65 Mon Sep 17 00:00:00 2001
From: Sindre Sorhus <sindresorhus@gmail.com>
Date: Mon, 27 Dec 2021 19:53:01 +0100
Subject: [PATCH] Document what we accept

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

diff --git a/readme.md b/readme.md
index d6af2e40..b92c75a3 100644
--- a/readme.md
+++ b/readme.md
@@ -6,6 +6,8 @@ The file type is detected by checking the [magic number](https://en.wikipedia.or
 
 This package is for detecting binary-based file formats, not text-based formats like `.txt`, `.csv`, `.svg`, etc.
 
+We accept contributions for commonly used modern file formats, not historical or obscure ones. Open an issue first for discussion.
+
 <br>
 
 ---