Docs for local generators and executors

Documentation issue

• Reporting a typo
• Reporting a documentation bug
• Documentation improvement
• Documentation feedback

Is there a specific documentation page you are reporting?

• Workspace Generators
• Creating Custom Executors

Additional context or description

Hey @AgentEnder, thanks for completing #9116. This change is going to make local plugins much more usable.

I feel some doc changes may be required to clarify the process of creating and using local generators and executors now that they don’t need to be manually compiled:

• Has the nx workspace-generator command been deprecated? (also, does Nx Console need to be updated?)
• Can the ‘compiling’ portion of Compiling and Running your Executor be removed?
• Clarify usage of generators and executors within the /tools directory, including the required package.json file(s).
• The docs suggest a new executor.json file per-executor, rather than one for the directory, e.g. /tools/executors/executors.json. Is this the recommended approach?
• The nav link is called “Using Custom Builders” instead of “Using Custom Executors”.

[AgentEnder]

#9730 will fix it, definitely unintended.

[pascalbe-dev]

This link (https://nx.dev/using-nx/nx-devkit) points me to the getting started intro page. Is this intended?

I can not find the documentation from the pull request on the website. Please point me to the correct URL, in case I missed it. 😃