Change coordinates in Annotations tutorial

... in the `transAxes` / "axes fraction" example. Brining the
annotations closer to the coordinate axes makes it easier to
see that they are really the same. Also, the previous positioning
(0.5, 0.5) without centered alignment results in almost, but not
exactly centering of the text in the Axes frame, which is not
quite nice visually.

Author: Tim Hoffmann

galleries/users_explain/text/annotations.py

@@ -569,8 +569,8 @@ def custom_box_style(x0, y0, width, height, mutation_size):
 # coordinate system to "axes fraction":
 
 fig, (ax1, ax2) = plt.subplots(nrows=1, ncols=2, figsize=(6, 3))
-ax1.annotate("Test", xy=(0.5, 0.5), xycoords=ax1.transAxes)
-ax2.annotate("Test", xy=(0.5, 0.5), xycoords="axes fraction")
+ax1.annotate("Test", xy=(0.2, 0.2), xycoords=ax1.transAxes)
+ax2.annotate("Test", xy=(0.2, 0.2), xycoords="axes fraction")
 
 # %%
 # Another commonly used `.Transform` instance is ``Axes.transData``. This