Updated README.md: Removed broken link in web apps section titled 'Create a Character Vo…

[eric-j-owen]

Updated README.md: Removed broken link

Description

Removed a broken link: "Create a Character Voting App with React, Node, MongoDB and SocketIO"

Motivation and Context

This contributes to open issue #344

How Has This Been Tested?

Verified the link was not working. Verified the link was removed.

Types of changes

• [ x] Content Update (change which fixes an issue or updates an already existing submission)
• [ ] New Article (change which adds functionality)
• [ ] Documentation change

Checklist:

• [x ] My code follows the code style of this project.
• [x ] I have updated the documentation accordingly.
• [ x] I have read the CONTRIBUTING document.
• [ x] I have made checks to ensure URLs and other resources are valid