Update README.md

Author: marvin-j97

README.md

@@ -8,6 +8,8 @@
 
 An immutable byte slice that may be inlined, and can be partially cloned without heap allocation.
 
+Think of it as a specialized `Arc<[u8]>` that can be inlined (skip allocation for small values) and no weak count.
+
 ![Memory layout](./byteview.png)
 
 `byteview` was designed to speed up deserialization in `lsm-tree`, allow inlining of small values and reduce memory usage compared to Arc'd slices.
@@ -61,4 +63,4 @@ Allocating 500k `"helloworld".repeat(1000)` (len=10'000) strings:
 
 ```bash
 cargo +nightly fuzz run fuzz_target_1
-```
+```