Don't show index.html for Lit components

[justinfagnani]

For Lit you show the index.html file for every example. Not only does it show up first, obscuring the actual example, but it makes the Lit examples look more complicated when you don't show index.html with <script> tags for the other frameworks, or any other usage site.

I think you should only show index.html when you also show usage examples in the other frameworks.

[matschik]

While refactoring Component Party, I noticed that ! You are totally right !
It's not fair to Lit since the other frameworks does not have any "index.html". It was just interesting how a Lit component is rendered into the html file.

To address this, I just created #139 to show how each framework is rendered into the final "index.html".
I'll remove "index.html" from Lit examples.

[justinfagnani]

Thanks!