fix code style

ippisite/ippidb/urls.py

@@ -61,8 +61,16 @@ urlpatterns = [
         name="physicochemistry",
     ),
     re_path(r"^about-pca/$", views.about_pca, name="pca"),
-    re_path(r"^about-contributors/$",  views.ContributorListView.as_view(), name="contributors"),
-    re_path(r"^about-contributors/(?P<pk>\d+)$",  views.ContributorDetailView.as_view(), name="contributor_card"),
+    re_path(
+        r"^about-contributors/$",
+        views.ContributorListView.as_view(),
+        name="contributors",
+    ),
+    re_path(
+        r"^about-contributors/(?P<pk>\d+)$",
+        views.ContributorDetailView.as_view(),
+        name="contributor_card",
+    ),
     re_path(r"^targetcentric/$", views.PDBView.as_view(), name="cavities"),
     re_path(r"^targetcentric/networks$", views.NetworkView.as_view(), name="networks"),
     re_path(r"^api/", include(ROUTER.urls)),
@@ -107,4 +115,5 @@ urlpatterns += staticfiles_urlpatterns()
 
 if settings.DEBUG:
     import debug_toolbar
+
     urlpatterns = [re_path(r"^__debug__/", include(debug_toolbar.urls))] + urlpatterns