Description

Added Solution for Issue 'Operations on Doubly Linked Lists' in Python

Reference Issue number #367

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Type of change

Choosing one or more options from the following as per the nature of your Pull request. NOTE: Check boxes using [x]

[x] I have named my files and folder, according to this project's guidelines.
[x] My code follows the style guidelines of this project.
[x] My Pull Request has a descriptive title. (not a vague title like Update index.md)
[x] I have commented on my code, particularly in hard-to-understand areas.
[x] I have created a helpful and easy to understand README.md, with problem description and my name.
[ ] I have included a requirements.txt file (if external libraries are required.)
[x] My changes do not produce any warnings.
[x] I have starred this repository.
[x] I have added a working sample/screenshot of the script.
[x] I have checked for trailing spaces in file names and none have them.