Clarify what "base project directory" means

[gardner]

Describe the content issue:
When setting up a new flutter project, there is a directory for the flutter code:

myproject/
 | - flutter_app/
 | - docs/

In the docs it refers to "base project directory" which is not explicit. Does this mean inside the flutter_app/ directory or inside myproject/ directory?

URL page where content issue is:

https://docs.amplify.aws/flutter/start/quickstart/

Line in docs repo

docs/src/pages/[platform]/start/quickstart/index.mdx

Line 172 in 1197ec9

The easiest way to get started with AWS Amplify is through npm with `create-amplify` command. You can run it from your base project directory.

[josefaidt]

Hey @gardner 👋 thanks for raising this! It is a bit vague, however it is referring to the root of your project -- in this case, myproject/