updated readthedocs configuration

readthedocs.yml

@@ -3,4 +3,4 @@ python:
   # conf.py)
   pip_install: true
 
-requirements_file: ..readthedocs-requirements.txt
\ No newline at end of file
+requirements_file: .readthedocs-requirements.txt
\ No newline at end of file

setup.py

@@ -26,5 +26,5 @@ setuptools.setup(
     include_package_data=False,
     package_data={"": ["LICENSE", "README.md"]},
     requires=['numpy', 'scipy', 'astropy'],
-    python_requires='>=3.9.7',
+    python_requires='>=3.7',
 )