Update project files

Author: rollingstorms

.github/workflows/pages.yml

@@ -23,6 +23,8 @@ jobs:
 
       - name: Setup Pages
         uses: actions/configure-pages@v4
+        with:
+          enablement: true
 
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3

CHANGELOG.md

@@ -0,0 +1,8 @@
+# Changelog
+
+## v0.1.0
+
+- Initial release of Opproplot.
+- Vectorized core (`compute_operating_profile`) with TPR/FPR/accuracy vs threshold.
+- Matplotlib plotting helper (`operating_profile_plot`) with optional key placement and grid styling.
+- Package scaffold with docs site (hero/demo images), tests, and CI for lint/tests plus Pages deploy.