Add Supported versions of dependencies (React, Typescript, etc) to Readme

[NicholasBoll]

🚀 Feature Proposal

Add Supported versions of dependencies (React, Typescript, Emotion, etc) to Readme

Motivation

Someone could find out what we support if they look through all the package.json files, but it would be better to be explicit about what versions we want to support in our Readme.

[rbrishabh]

Hey! Can I take this up?

[NicholasBoll]

@rbrishabh Sure. The tricky thing is where this information should go. We list a "React" section, but not the others. Perhaps we should have a new section in the React portion of the Readme titled "Dependencies" with a list of the following:

Maybe something like the following:

### Dependencies
The following are supported versions of dependencies.

* React:  >=16.8 < 17
* Typescript: >=3.5 (optional)
* Emotion: >=9.2 <10

[jaclynjessup]

AC:

• [ ] Decide where this should live within our repo
• [ ] Add to our repo
• [ ] Potentially see about automating the update process for this