Setting Up A React Environment: Add note on setting up react in existing repo

[s-hens]

Because

In previous lessons, students are always encouraged to follow a workflow that starts with creating a repo on GitHub, cloning it, working on it locally, and pushing changes often. Adding a note on how to set up a react environment in an existing repo will encourage students to keep using version control best practices while learning React, and minimize confusion over how to do it.

This PR

• Adds a note on how to set up a React environment in an existing directory
• Reminds students that a React environment can be set up in a repo cloned from GitHub
• Encourages the continued use of version control during the React lessons

Issue

n/a

Additional Information

I was motivated to suggest this change because I was confused during this lesson. I turned to Google for information on how to use React in combination with my existing GitHub workflow. I ended up getting a helpful answer on the TOP Discord, but I believe this information should simply be included in the lesson.

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[ManonLef]

Thanks for the suggestion. However, it looks like you've edited an old lesson or your branch is not up to date. We don't use create-react-app anymore. So if you wish to edit the new React content, it needs to be in the updated React course lesson

I think at this point in the curriculum, it's good if people have knowledge on how to go from local to remote as well. I do think at this point we can also safely assume that people that need this, will know how to find the instructions for this online. Spending time in the Discord, I haven't really come across people running into issues from starting a React app locally.

A while back I added an additional resource about going from a local repo to remote in the Git Basics Foundation lesson.

My suggestion would be that if you wish to include anything about adding a React environment to an existing project/local repo, it would only be a note on the command that's needed to initialise it inside the repo. I really don't think at this point in the curriculum we should even have to mention Github and the cloning step.

[s-hens]

Thanks for the constructive feedback, and my apologies! In light of the additional resource you added, I can see how this note may not be needed.