As a new user, I want to get started with ESDoc. What is the standard npm command to install it, and what are the essential configuration details to set up a basic `esdoc.json` file, specifically how do I define where my source code is located and where the documentation should be generated?
Navigate to esdoc.org. Go to the 'Usage' section to find installation instructions. Identify the standard npm installation command for ESDoc. Go to the 'Config' section to find configuration details. Identify the main configuration file name. Locate the configuration properties for specifying source code location and output directory. Synthesize all identified information into a concise answer.
State the npm installation command as `npm install -g esdoc esdoc-standard-plugin`. Identify the main configuration file as `esdoc.json`. Specify that the `source` property defines the source code location. Specify that the `destination` property defines the output directory for generated documentation.