DOC: make simple animation example easier to find

Author: rcomer

doc/sphinxext/gallery_order.py

@@ -82,6 +82,8 @@ def __call__(self, item):
     "colors",
 
     #  **Examples**
+    #  animation
+    "simple_anim",  # Most basic example
     #  color
     "color_demo",
     #  pies

galleries/examples/animation/simple_anim.py

@@ -1,7 +1,7 @@
 """
-==================
-Animated line plot
-==================
+========================
+Basic animated line plot
+========================
 
 Output generated via `matplotlib.animation.Animation.to_jshtml`.
 """
@@ -36,3 +36,9 @@ def animate(i):
 # ani.save("movie.mp4", writer=writer)
 
 plt.show()
+
+# %%
+#
+# .. tags::
+#    component: animation,
+#    level: beginner