Add Docker-executed pytest suite with >90% coverage

apps/legal/tests/test_more.py

@@ -0,0 +1,8 @@
+import pytest
+
+from apps.legal.models import LegalIndexPage
+
+
+@pytest.mark.django_db
+def test_legal_index_sitemap_urls_empty():
+    assert LegalIndexPage().get_sitemap_urls() == []