Add `wikipedia` as a `DataType`

[ianupamsingh]

Description

This PR includes changes to add wikipedia as a DataType by using wikipedia PyPI package

Fixes #212

Type of change

• [x] New feature (non-breaking change which adds functionality)
• [x] Documentation update

How Has This Been Tested?

It has been tested locally

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings

Maintainer Checklist

• [ ] closes #xxxx (Replace xxxx with the GitHub issue number)
• [ ] Made sure Checks passed

[rupeshbansal]

Thanks for putting this up. From a quick glance, the support for auto-inferring the Wikipedia datatypes also needs to be added in https://github.com/embedchain/embedchain/blob/d0956a0dc1952126398a48fd4647d81eb56de5ed/embedchain/utils.py#L118

[cachho]

Can you resolve the merge conflict and deal with the requested changes please? Let me know if you want us to take over. thanks.

[deshraj]

@ianupamsingh can you please resolve the conflicts so that we can merge this PR?

[Dev-Khant]

@ianupamsingh Can you please resolve the merge conflicts so we can merge this PR?

[taranjeet]

Thanks for your contribution @ianupamsingh . This is a great one. Will have to close this as it has become stale and wikipedia can be handled by using web_page as the data type.