Added to changelog

Author: diondokter

CHANGELOG.md

@@ -4,6 +4,8 @@
 
 ## Unreleased
 
+- Added check for too big items that won't ever fit in flash so it returns a good clear error.
+
 # 2.0.1 06-05-24
 
 - Implemented the `get_len` function for all built-in key types

src/lib.rs

@@ -387,6 +387,8 @@ pub enum Error<S> {
     SerializationError(SerializationError),
     /// The item does not fit in flash, ever.
     /// This is different from [Error::FullStorage] because this item is too big to fit even in empty flash.
+    ///
+    /// See the readme for more info about the constraints on item sizes.
     ItemTooBig,
 }