From 86cac19c14e935d6d943bf9115b2f3d042a80d98 Mon Sep 17 00:00:00 2001
From: pjechris <pjechris@users.noreply.github.com>
Date: Mon, 25 Mar 2024 16:19:30 +0100
Subject: [PATCH] [doc] add explanation about writable keypath (#66)

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

diff --git a/README.md b/README.md
index 865307f..3a868b2 100644
--- a/README.md
+++ b/README.md
@@ -149,6 +149,8 @@ CohesionKit then handles synchronisation for the three entities:
 - Author
 - Book
 
+> Only writable keypath are accepted. Using a KeyPath (let) will result in error: "Key path value type KeyPath<XX> cannot be converted to contextual type WritableKeyPath<XX>"
+
 This gives you the ability to retrieve them independently from each other:
 
 ```swift