docs: improve documentation of 'config' option

[BinToss]

https://github.com/semantic-release/commit-analyzer#options

npm package name of a custom conventional-changelog preset. i.e "conventional-changelog-conventionalcommits"?

• Am I correct in understanding this 'name' would be the same value as used in the following example? npm install $name
• Does the 'config' option require additional configuration like the 'preset' option may require the 'presetConfig' option depending on its value?
• Does it expose options/parameters of the selected config as configurable child objects similar to how options are passed to a plugin?