Simplify notebook examples

[sarthaklangde]

Description

Currently, the examples directory has one directory per model and then we have many notebooks with only one line changing at max. It is quite hard to keep track of which examples we have covered and which we haven't. It also creates confusion #132.

Proposal

We should create one notebook for each thing we are trying to showcase. If there are one-line variations then we should have a separate page in docs that shows the variants.

Eg: For all the different model variations, we can just keep an updated models page that lets user pick and choose what model they would like to fine-tune.