docs: add an html + javascript example

[jpcsmith]

This adds a javascript + HTML example.

Depends on walrus #515 to enable PUT requests from browsers to the client daemon.

If you feel this is too complicated, let me know and I can simplify it.

TODO:

• Add a readme file describing the steps to setup the example (run the daemon, open the HTML file in the browser).

Contributes to #11

[mlegner]

Thanks for the example, @jpcsmith. I don't know much about JS, so I can't comment much on the code itself.

But I ran it locally and it works! 💯

Just two optional suggestions from my side.

[gdanezis]

Also not a JS guru here (in fact n00b) but tested it and it works. Just one suggestion below to add a few links:

• Can we add a link to a Sui explorer so that people can go see their object (ensure its pointing to testnet).
• Since this is web, can we add a link to the Walrus docs?

[jpcsmith]

Hey @mlegner, could you just briefly do a sanity pass by running this on your own machine to ensure I didnt miss break anything for others? Otherwise it's ready to merge.

[mlegner]

Amazing work, @jpcsmith! Runs very smoothly, just noticed some very minor issues.