create solidity cheatsheet

[WonderSTK]

What does this PR do?

Add resource(s) | Remove resource(s) | Add info | Improve repo Add resource

For resources

solidity cheatsheet

Description

Why is this valuable (or not)?

I have created a solidity cheatsheet which will help to understand the concept of solidity in an easy way and it will help those who want to dive into web 3.0

How do we know it's really free?

For book lists, is it a book? For course lists, is it a course? etc.

its a cheatsheet

Checklist:

• [x] Read our contributing guidelines.
• [x] Search for duplicates.
• [x] Include author(s) and platform where appropriate.
• [x] Put lists in alphabetical order, correct spacing.
• [x] Add needed indications (PDF, access notes, under construction).
• [x] Used an informative name for this pull request.

Follow-up

• Check the status of GitHub Actions and resolve any reported warnings!

[LuigiImVector]

please solve linter problems

[LuigiImVector]

lint errors solved

there are 19 warnings

[WonderSTK]

All lint errors has solved plz merged it and add a hacktoberfest label

[eshellman]

please add resources to the correct files