chore: update crate version to 0.3.1

Author: aesedepece

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "scriptful"
-version = "0.3.0"
+version = "0.3.1"
 authors = ["The Scriptful Project Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"

README.md

@@ -20,6 +20,7 @@ The whole library is built around these concepts:
 - __[Operator system]__: a function that decides how each operator will mutate a given stack.
 - __[Script]__: an ordered sequence of items (values and operators) that can be passed to an operator system for operating on a given stack.
 - __[Machine]__: a convenient wrapper around a stack that enables multiple modes of operation.
+- __[Codec]__: a set of methods for encoding and decoding scripts and items, normally into and from binary formats.
 
 Using this library is as easy as:
 

src/lib.rs

@@ -1,4 +1,5 @@
-//! ___Scriptful_ is a minimalist `no_std` stack machine for interpreting scripts written using domain specific interpreted languages.__
+//! ___Scriptful_ is a minimalist `no_std`, zero dependency stack machine for interpreting scripts written with domain
+//!  specific interpreted languages.__
 //!
 //! This library is heavily inspired by the [Forth] programming language and [Script][BitcoinScript]
 //! (the scripting language in Bitcoin).