Viscosity conversion tool

[shubham2704]

Create a viscosity conversion tool in html,css and javascript.

• Add navbar in your tool's html file. You can copy the navbar from index.html.
• Add screenshot of your tool in, PR message and also in the folder of your tool
• Before Making the PR Pull the latest changes that have been made to the repository

**Note: Please Don't Make Any Changes In index.html AND contributors.html **

Add the below mention section to your PR message

Title

Number of files/folder added

changes made

I have;

• Read contibuting.md
• Followed all the guidelines
• updated readme.md
• add your name in the footer of your tool.html file (if you created length conversion tool then add your name to length.html file you created)
• provide below mentioned details if you want your name to be added in contributors.html
• mail, twitter, github profile link.

[Anamika810]

Kindly assign me this issue.