[DOC] Missing Docstring in Plot Pairwise Distance Matrix

[kavya-r30]

Describe the issue linked to the documentation

Missing docstring about the function and parameters:

def plot_pairwise_distance_matrix(
    distance_matrix,
    a,
    b,
    path,
):

    # Checks availability of plotting libraries
    _check_soft_dependencies("matplotlib", "seaborn")
    import matplotlib.pyplot as plt
    import seaborn as sns```

### Suggest a potential alternative/fix

_No response_

[kavya-r30]

@aeon-actions-bot assign @kavya-r30

[NasheetaFarzana]

Hello @kavya-r30 , I am new in open source coding , I want to add a concise docstring to the above code could you please guide me how should I add it.

[kavya-r30]

Hi @NasheetaFarzana, Thank you for reaching out! I’m currently working on this issue and will be adding the docstring soon