Add classifiers (#21)

Author: jarrodmillman

pyproject.toml

@@ -9,9 +9,17 @@ requires-python = ">=3.8"
 authors = [{name = "Scientific Python Developers"}]
 readme = "README.md"
 license = {file = "LICENSE.md"}
-classifiers = ["License :: OSI Approved :: BSD License"]
+classifiers = [
+  "Development Status :: 4 - Beta",
+  "License :: OSI Approved :: BSD License",
+  "Programming Language :: Python :: 3",
+  "Programming Language :: Python :: 3.8",
+  "Programming Language :: Python :: 3.9",
+  "Programming Language :: Python :: 3.10",
+]
 dynamic = ["description"]
 
+
 [project.optional-dependencies]
 test = ["pytest >= 7"]
 lint = ["pre-commit >= 2.20"]