Webiste/Notebook Updates

[ArshaanNazir]

Description

This PR aims to update the tutorial notebooks and website with the latest changes

➤ Notebook Links:

• BigBench
• LogiQA
• asdiv
• Disinformation Test
• Text Generation HF Hub
• Political Test

[Prikshit7766]

Parameter	Description
task	Task for which the model is to be evaluated (text-classification or ner)
model	Specifies the model(s) to be evaluated. This parameter can be provided as either a dictionary or a list of dictionaries. Each dictionary should contain the following keys: model (mandatory): PipelineModel or path to a saved model or pretrained pipeline/model from hub. hub (mandatory): Hub (library) to use in back-end for loading model from public models hub or from path
data	The data to be used for evaluation. A dictionary providing flexibility and options for data sources. It should include the following keys: data_source (mandatory): The source of the data. subset (optional): The subset of the data. feature_column (optional): The column containing the features. target_column (optional): The column containing the target labels. split (optional): The data split to be used. source (optional): Set to 'huggingface' when loading Hugging Face dataset.
config	Configuration for the tests to be performed, specified in the form of a YAML file.

@ArshaanNazir Should we change the Harness parameters table with the above one in the notebooks

[chakravarthik27]

LGTM