Update pyproject.toml

Had to add the content type for README.md, otherwise it didn't render correctly on Pypi.

Author: AnnaBobasheva

pyproject.toml

@@ -5,7 +5,7 @@ build-backend = "setuptools.build_meta"
 
 [tool.setuptools.dynamic]
 version = { file = "src/pycorese/VERSION.txt" }
-readme = { file = "README.md" }
+readme = { file = "README.md", content-type = "text/markdown" }
 
 
 [project]