Cant't change the name of main html file in the output of `nim doc`?

[PMunch]

No, I was saying that it would be a poor design by the compiler to output a 
`index.html` file. Of course if the user specifies that they want to rename a 
specific module to `index.html` then that could work, but then why not just 
throw `mv mymodule.html index.html` into your script, surely that's about the 
same length as the extra flags to `nim doc` would be..