docs: tweak readme, project trove classifiers

README.md

@@ -1,6 +1,7 @@
 
 # Sideshow-COREPOS
 
-This package adds CORE-POS integration for Sideshow.
+This package adds [CORE-POS](https://www.core-pos.com/) integration
+for [Sideshow](https://pypi.org/project/Sideshow/).
 
 Full docs are at https://rattailproject.org/docs/sideshow-corepos/

pyproject.toml

@@ -27,6 +27,8 @@ classifiers = [
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
+        "Topic :: Office/Business",
+        "Topic :: Software Development :: Libraries :: Python Modules",
 ]
 license = {text = "GNU General Public License v3+"}
 requires-python = ">= 3.8"