fix version badge

README.md

@@ -2,7 +2,7 @@
 [![Documentation Status](https://github.com/USEPA/harmonize-wq/actions/workflows/documentation_deploy.yaml/badge.svg)](https://github.com/USEPA/harmonize-wq/actions/workflows/documentation_deploy.yaml)
 [![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/#active)
 [![test](https://github.com/USEPA/harmonize-wq/actions/workflows/test.yml/badge.svg)](https://github.com/USEPA/harmonize-wq/actions/workflows/test.yml)
-[![python version](https://img.shields.io/python/required-version-toml?tomlFilePath=https://www.https://raw.githubusercontent.com/USEPA/harmonize-wq/main/pyproject.toml)](https://www.python.org/downloads/)
+[![Python Version from PEP 621 TOML](https://img.shields.io/python/required-version-toml?tomlFilePath=https://www.https://raw.githubusercontent.com/USEPA/harmonize-wq/main/pyproject.toml)](https://www.python.org/downloads/)
 # harmonize-wq
 Standardize, clean, and wrangle Water Quality Portal data into more analytic-ready formats