Update README to reflect Python 3.10 compatibility and badge changes

Author: bastula

README.rst

@@ -16,7 +16,7 @@ Other information
 
 -  Free software: `BSD license <https://github.com/dicompyler/dicompyler-core/blob/master/LICENSE>`__
 -  Documentation: `Read the docs <https://dicompyler-core.readthedocs.io>`__
--  Tested on Python 3.7+
+-  Tested on Python 3.10+
 
 Dependencies
 ------------
@@ -85,7 +85,7 @@ This package was created with
    :target: http://mybinder.org/repo/bastula/dicom-notebooks
 .. |pypi| image:: https://img.shields.io/pypi/v/dicompyler-core.svg
    :target: https://pypi.python.org/pypi/dicompyler-core
-.. |Python Version| image:: https://img.shields.io/badge/python-3.7+-blue.svg
+.. |Python Version| image:: https://img.shields.io/badge/python-3.10+-blue.svg
    :target: https://pypi.python.org/pypi/dicompyler-core
 .. |GH Actions| image:: https://github.com/dicompyler/dicompyler-core/actions/workflows/build.yml/badge.svg
    :target: https://github.com/dicompyler/dicompyler-core/actions
@@ -97,8 +97,8 @@ This package was created with
    :target: https://app.codacy.com/gh/dicompyler/dicompyler-core/dashboard
 .. |Codecov| image:: https://codecov.io/gh/dicompyler/dicompyler-core/branch/master/graph/badge.svg
    :target: https://codecov.io/gh/dicompyler/dicompyler-core
-.. |Total Lines| image:: https://img.shields.io/tokei/lines/github/dicompyler/dicompyler-core
-   :target: https://img.shields.io/tokei/lines/github/dicompyler/dicompyler-core
+.. |Total Lines| image:: https://img.shields.io/endpoint?url=https://ghloc.vercel.app/api/dicompyler/dicompyler-core/badge?style=flat&logoColor=white&label=Lines%20of%20Code
+   :target: https://ghloc.vercel.app/dicompyler/dicompyler-core?branch=master
 .. |Code Size| image:: https://img.shields.io/github/languages/code-size/dicompyler/dicompyler-core
    :target: https://img.shields.io/github/languages/code-size/dicompyler/dicompyler-core
 .. |Zenodo| image:: https://zenodo.org/badge/51550203.svg