Added instructions for installing Node

[rajdeepdas2000]

Fixes

Fixes #2038 by @sarayourfriend

Description

Added instructions for installing volta, node and pnpm

Testing Instructions

Checklist

• My pull request has a descriptive title (not a vague title like Update index.md).
• My pull request targets the default branch of the repository (main) or a parent feature branch.
• My commit messages follow best practices.
• My code follows the established code style of the repository.
• I added or updated tests for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no visible errors.

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[sarayourfriend]

As described in the issue, we use volta to pin the Node version that we use for the project.

These instructions should read something like:

1. Install node using Volta: volta install node@16
2. Install pnpm using Volta: volta install pnpm
3. Run volta run pnpm dev

These will be simplified soon once Volta fully supports pnpm, which should happen with the next Volta release: volta-cli/volta#737 (comment)

At that point the instructions can be reduced to simply volta run pnpm dev.

[obulat]

Looks great, except for one change I suggested inline.

[obulat]

Suggested change

	Run volta run pnpm dev
	volta run pnpm dev

[rajdeepdas2000]

Done.

[obulat]

Thank you for your contribution, @rajdeepdas2000 !

[zackkrida]

These instructions look good. I can't wait until pnpm is officially supported to make this simpler. Volta automaticaly symlinks the correct node version, but it only does its check to create the correct symlink the first time node or npm is evoked in a directory. So if someone has volta installed, clones the frontend, and runs a command likenode -v in the repo root, at that point volta will automatically install and symlink node v16.15.0 before evoking the command.

Once pnpm support is official, running pnpm dev will be sufficient to install and link the correct node version. At that time we can remove these instructions.

The required changes were made