readme update

Author: rudib

README.md

@@ -35,7 +35,7 @@ provide safe packing, unpacking and runtime debugging formatters with per-field
 
 ```toml
 [dependencies]
-packed_struct = "0.5"
+packed_struct = "0.6"
 ```
 ## Importing the library with the the most common traits and the derive macros
 
@@ -190,6 +190,37 @@ fn main() -> Result<(), PackingError> {
 }
 ```
 
+## Nested packed types
+
+```rust
+use packed_struct::prelude::*;
+#[derive(PackedStruct, Debug, PartialEq)]
+#[packed_struct(endian="lsb")]
+pub struct Duration {
+    minutes: u8,
+    seconds: u8,
+}
+#[derive(PackedStruct, Debug, PartialEq)]
+pub struct Record {
+    #[packed_field(element_size_bytes="2")]
+    span: Duration,
+    events: u8,
+}
+fn main() -> Result<(), PackingError> {
+    let example = Record {
+        span: Duration {
+            minutes: 10,
+            seconds: 34,
+        },
+        events: 3,
+    };
+    let packed = example.pack()?;
+    let unpacked = Record::unpack(&packed)?;
+    assert_eq!(example, unpacked);
+    Ok(())
+}
+```
+
 ## Nested packed types within arrays
 
 ```rust

packed_struct/src/lib.rs

@@ -35,7 +35,7 @@
 //!
 //! ```toml
 //! [dependencies]
-//! packed_struct = "0.5"
+//! packed_struct = "0.6"
 //! ```
 //! ## Importing the library with the the most common traits and the derive macros
 //!