pubmed script added

[VarsaGupta]

Description

Added the Python script that extracts and saves PubMed article abstracts for a given query using the Beautiful Soup library.

Resolves: #937

Checklist

Before submitting this pull request, kindly verify that the ensuing checkpoints have been reached.

• Have you adhered to the repository's defined coding convention rules?
• Have you updated the 'documentation.md' file with the method/function documentation?
• Have you sent a message along with the result or response?
• Have you used the try-catch technique?
• Has the method/class been added to the documentation (md file)?

Screenshots

This is the format of the abstract file that will contains all the data extracted from the pubmed based on user's query.

Additional Notes/Comments

Please feel free to provide any additional remarks, suggestions, or feedback concerning this pull request. Your input is valuable and appreciated.

---

I certify that I have carried out the relevant checks and provided the requisite screenshot for validation by submitting this pull request.
I appreciate your contribution.