DOC: highlighted deprecations with backward compatibility information

[meiyasan]

Hello,

I wanted to suppress the deprecation warning when using the cmor continuous wavelet family in my code. Instead of removing the message entirely, I highlight the initial parameters of the deprecated wavelet names for reference.

Below is the code snippet I’m working with:

import pywt
wavelets = ["fbsp", "cmor", "shan"]
for wavelet in wavelets:
    w = pywt.ContinuousWavelet(wavelet)
    print(wavelet)
    print("M = ", w.fbsp_order)
    print("B = ", w.bandwidth_frequency)
    print("C = ", w.center_frequency)
    print("")

[agriyakhetarpal]

Thanks, @meiyasan!