Added dev dependencies

Author: jonathanharg

pyproject.toml

@@ -7,9 +7,12 @@ name = "binaryen.py"
 authors = [
     {name = "Jonathan Hargreaves", email = "[email protected]"},
 ]
-description = "A Python wrapper for binaryen"
+description = "A Python wrapper for Binaryen"
 requires-python = ">=3.11"
 dependencies = [
     'cffi >= 1.15.1',
 ]
-version = "0.0.1"
+version = "0.0.1"
+
+[project.optional-dependencies]
+dev = ["black", "isort", "mkdocs", "pytest"]