Update README.md

[shkfnly]

ethjs-contract

Thank you for contributing! Please take a moment to review our contributing guidelines to make the process easy and effective for everyone involved.

Please open an issue before embarking on any significant pull request, especially those that add a new library or change existing tests, otherwise you risk spending a lot of time working on something that might not end up being merged into the project.

Before opening a pull request, please ensure:

• [ ] You have followed our contributing guidelines
• [ ] Pull request has tests (we are going for 100% coverage!)
• [ ] Code is well-commented, linted and follows project conventions
• [ ] Documentation is updated (if necessary)
• [ ] Internal code generators and templates are updated (if necessary)
• [ ] Description explains the issue/use-case resolved and auto-closes related issues

Be kind to code reviewers, please try to keep pull requests as small and focused as possible :)

IMPORTANT: By submitting a patch, you agree to allow the project owners to license your work under the terms of the MIT License.

[coveralls]

Coverage remained the same at 100.0% when pulling b00bbc4802596c728b7505e046ff85993fdbc813 on shkfnly:patch-2 into 7a75bfce6c0c9bbd17e437d8f6c825f7c96df241 on ethjs:master.

[kumavis]

the proposed change is actually incorrect