feature/tu/first_implementation (#2)

Co-authored-by: Torsten Ueberschar <torsten@ueberschar.de>
Reviewed-on: torsten/freelance_invoice#2

pyproject.toml

@@ -0,0 +1,29 @@
+[project]
+name = "simple-invoice-generator"
+version = "0.2.0"
+description = "Simple invoice generator for freelancers and small businesses"
+readme = "README.md"
+authors = [{name = "Torsten Ueberschar", email = "tu@uesome.de"}]
+requires-python = ">=3.10"
+
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "Intended Audience :: Developers, Freelancers",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3.10",
+]
+
+
+dependencies = [
+    'PyYAML',
+    'Jinja2',
+    'xhtml2pdf',
+    'Markdown'
+]
+
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+
+[project.scripts]
+invoice = "main:main"