[Docs] Update complex join example to better illustrate the options available (symmetry with where)

[MarkusWendorf]

Hello,

when I read the docs I failed to understand how to do OR expressions.

You can do all the same things with the
on method that you can with the corresponding where method

The hint at the where documentation was not sufficient for me (that's more a me issue though).

So I included a little more information about the options provided by on.

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
kysely	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Feb 14, 2024 11:42am

[koskimas]

Those files you modified are automatically generated from the comments in the source code. You need to:

1. Modify the example in the code coments
2. Build using npm run build
3. Run this script to generate the example files for kysely.dev.

[MarkusWendorf]

Ok got it. The script is using lodash which was not present in the package.json. I added it as a dev dependency, if that's alright.

[koskimas]

Thanks!