docs: real repo url + pip install command

point install at git.rethinkstudios.io; show both the requirements.txt
line and the direct pip install command.

Signed-off-by: disqualifier <dev@disqualifier.me>

pyproject.toml

@@ -1,17 +1,16 @@
 [build-system]
-requires = ["setuptools>=61.0"]
-build-backend = "setuptools.build_meta"
+requires = ["hatchling"]
+build-backend = "hatchling.build"
 
 [project]
 name = "mongo"
 version = "0.1.0"
 description = "async mongodb wrapper over motor with a raw escape hatch"
-readme = "README.md"
 requires-python = ">=3.10"
 dependencies = [
     "motor>=3.0",
     "pymongo>=4.0",
 ]
 
-[tool.setuptools.packages.find]
-where = ["src"]
+[tool.hatch.build.targets.wheel]
+packages = ["src/mongo"]