tips/contributing.md

Easy steps:

• Fork the repo.

• Install the deps:

 $ cd tips && npm install

⚠️ don't fail to think that this is optional, because if you don't install the dependencies you won't get the benefit of auto-updating README and TOC and your PR will likely to not get merged because of that.

• Edit tips.json to add your tip in the below format:

{
    "title": <your_tip_title>,
    "tip": <your_tip>,
    "alternatives": [Optional list of alternatives]
}

• Commit, push and send a PR!