Added Few Mini Projects from my side

[AtharvaPawar456]

Description

A short summary of what is included in My Pull Request.

Type of change

Choosing one or more options from the following as per the nature of your Pull request.

• New project insert
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Documentation Update

Project

• Task Reminder: A simple reminder app that notifies you at a set time.

• Pomodoro Timer: A productivity timer based on the Pomodoro Technique.

• Chatbot with Basic Responses: Create a basic chatbot that responds to user input with predefined answers.

• Markdown to HTML Converter: Convert Markdown files to HTML.

• Random Password Generator: Generate a random, secure password.

• Stock Portfolio Optimizer: Optimize a Stock portfolio based on risk and return.

• Personal Finance Manager: Track income and expenses, and calculate savings.

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Checklist:

Please tick all the boxes that are fulfilled by your Pull Request.

• I have named my files and folder, according to this project's guidelines.
• My code follows the style guidelines of this project.
• I have commented on my code, particularly in hard-to-understand areas.
• I have created a helpful and easy to understand README.md, according to the given README_TEMPLATE.
• My changes do not produce any warnings.