Previously located in the `aio` directory, the commit moves the docs file into `adev` and also moves the `script` used to generated them from the `angular-cli` repo.
PR Close#55242
This commits adds an action to update the Angular CLI help contents that are used by AIO to generate CLI guides.
This also changes the setup to include the files are source files instead of having to clone the repository each time. This also simplifies the PR review process of the PR opened by the action.
PR Close#48577
Andrew Scott