DOC Fixes hard coded title in gmm selection example plot (scikit-learn#17418)

Co-authored-by: Thomas S. Benjamin <[email protected]>
Co-authored-by: Roman Yurchak <[email protected]>

Author: 3 people

examples/mixture/plot_gmm_selection.py

@@ -94,6 +94,7 @@
 
 plt.xticks(())
 plt.yticks(())
-plt.title('Selected GMM: full model, 2 components')
+plt.title(f'Selected GMM: {best_gmm.covariance_type} model, '
+          f'{best_gmm.n_components} components')
 plt.subplots_adjust(hspace=.35, bottom=.02)
 plt.show()