docs: Update the GIFs (#940)

- now that activity feed appears first by default

examples/00_getting_started/plot_01_getting_started.py

@@ -194,13 +194,13 @@
 # their history so that, from the skore UI, we could visualize their different
 # histories:
 #
-# .. image:: https://media.githubusercontent.com/media/probabl-ai/skore/main/sphinx/_static/images/2024_12_10_tracking_comp.gif
+# .. image:: https://media.githubusercontent.com/media/probabl-ai/skore/main/sphinx/_static/images/2024_12_12_tracking_comp.gif
 #   :alt: Tracking the history of an item from the skore UI
 #
 # |
 # There is also an activity feed functionality on the left side bar:
 #
-# .. image:: https://media.githubusercontent.com/media/probabl-ai/skore/main/sphinx/_static/images/2024_12_09_skore_activity_feed.png
+# .. image:: https://media.githubusercontent.com/media/probabl-ai/skore/main/sphinx/_static/images/2024_12_12_skore_activity_feed.png
 #   :alt: Activity feed on the skore UI
 #
 # |

examples/01_track/plot_02_tracking_items.py

@@ -61,12 +61,12 @@
 #   and, from the skore UI, we could visualize the different histories of the ``my_int``
 #   item:
 #
-#   .. image:: https://media.githubusercontent.com/media/probabl-ai/skore/main/sphinx/_static/images/2024_12_10_tracking_comp.gif
+#   .. image:: https://media.githubusercontent.com/media/probabl-ai/skore/main/sphinx/_static/images/2024_12_12_skore_tracking_comp.gif
 #       :alt: Tracking the history of an item from the skore UI
 #
 #   There is also an activity feed functionality:
 #
-#   .. image:: https://media.githubusercontent.com/media/probabl-ai/skore/main/sphinx/_static/images/2024_12_09_skore_activity_feed.png
+#   .. image:: https://media.githubusercontent.com/media/probabl-ai/skore/main/sphinx/_static/images/2024_12_12_skore_activity_feed.png
 #       :alt: Activity feed on the skore UI
 
 # %%

examples/02_diagnose/plot_01_cross_validate.py

@@ -160,6 +160,15 @@
 cv_item = my_project.get_item("cross_validation_regression")
 cv_item.plot
 
+# %%
+# .. note::
+#
+#   If we put a cross-validation item in a skore project, we get some nice
+#   information in the UI:
+#
+#   .. image:: https://media.githubusercontent.com/media/probabl-ai/skore/main/sphinx/_static/images/2024_12_12_skore_demo_comp.gif
+#       :alt: Getting started with ``skore`` demo
+
 # %%
 # Cleanup the project
 # -------------------