Update version

pyproject.toml

@@ -9,7 +9,7 @@ exclude = ["htmlcov"] # Exclude the coverage report file from setuptools package
 name = "wsimod"
 description = "WSIMOD is for simulating water quality and quantity"
 readme = "README.md"
-version = "0.2.0"
+version = "0.4.0"
 license = {file = "LICENSE"}
 authors = [
     { name = "Barnaby Dobson", email = "[email protected]" },
@@ -68,4 +68,4 @@ select = ["E", "F", "I"] # pycodestyle, Pyflakes, isort. Ignoring pydocstyle (D)
 exclude = ["docs", "tests"]  # Let's ignore tests and docs folders, for now
 
 [tool.ruff.pydocstyle]
-convention = "google"
+convention = "google"