* DOC examples with correct notebook style
* Modifications in examples/ to avoid unwanted notebook style
* Remove last notebook style example
* Space formatting to avoid notebook style
* Modify plot_custom_kernel for matplotlib v2 comp
Add `edgecolors` attribute in scatter plot for better visualization
in matplotlib version 2
Issue: #8364
* Modify plot_oneclass.py for matplotlib v2 comp
Add `edgecolors` attribute to scatter plot for better
visualization in matplotlib version 2
Issue: #8364
* Modify plot_rbf_parameters for matplotlib v2
Add `edgecolors` attribute to scatter plot for
better visualization.
Issue: #8364
* Modify plot_separating_hyperplane_unbalanced for matplotlib v2
Add `edgecolors` attribute to scatter plot for better visualization.
Issue: #8364
* Modify plo_svm_kernels for matplotlib v2
Add `edgecolors` attribute to scatter plot for better
visualization.
Issue: #8364
* Modify plot_svm_margin for matplotlib v2 comp
Add `edgecolors` attribute to scatter plot for better
visualization.
Issue: #8364
* Modify plot_svm_nonlinear for matplotlib v2
Add `edgecolors` attribute to scatter plot for matplotlib
version 2 compatibility
Issue: #8364
* Modify file for remove flake8 error
Remove extra white space.
Issue: #8364