Adding Content related to Pandas Introduction

[DG492003]

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Adding Content related to Pandas Introduction like what is pandas, features, how to use, and example

PR Description

In this Issue, I created a section related to Pandas Introduction and other related information like its features, use, how to install and example.

Related Issues

• Closes #224

Checklist

• [x] I have gone through the contributing guide
• [x] I have updated my branch and synced it with project main branch before making this PR

Undertaking

I declare that:

1. The content I am submitting is original and has not been plagiarized.
2. No portion of the work has been copied from any other source without proper attribution.
3. The work has been checked for plagiarism, and I assure its authenticity.

I understand that any violation of this undertaking may have legal consequences that I will bear and could result in the withdrawal of any recognition associated with the work.

• [x] I Agree

[DG492003]

Fixes #224

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This content is not in accordance with the contributing guide. Please follow all the steps properly and raise a new PR. You can go through some of the merged PR to learn what has to be done. Closing this PR.