Add badges to README.md

* Add Crates.io badge
* Add docs.rs badge
* Add license badge
* Change license-file to license in Cargo.toml

Cargo.toml

@@ -1,14 +1,14 @@
 [package]
 name = "franklin"
 description = "A utility for generating images through evolution."
-version = "0.1.0"
+version = "0.1.1"
 edition = "2021"
 rust-version = "1.58"
 authors = ["Kamil Rusin"]
 readme = "README.md"
 homepage = "https://github.com/nathiss/franklin"
 repository = "https://github.com/nathiss/franklin"
-license-file = "LICENSE.txt"
+license = "MIT"
 keywords = ["generic-algorithm", "evolution", "evolutionary-art", "generation"]
 categories = ["command-line-utilities", "simulation"]
 include = ["/src", "Cargo.toml", "LICENSE.txt", "README.md"]

README.md

@@ -1,6 +1,9 @@
 # franklin
 
 [![franklin-ci](https://github.com/nathiss/franklin/actions/workflows/franklin-ci.yml/badge.svg?branch=development)](https://github.com/nathiss/franklin/actions/workflows/franklin-ci.yml)
+[![Crates.io](https://img.shields.io/crates/v/franklin)](https://crates.io/crates/franklin)
+[![docs.rs](https://docs.rs/franklin/badge.svg)](https://docs.rs/franklin/)
+![Crates.io](https://img.shields.io/crates/l/franklin)
 
 A utility for generating [evolutionary art](https://en.wikipedia.org/wiki/Evolutionary_art).