Include instruction to run benchmark

[sudo-barun]

Related Issue: #12

[galvez]

You're missing the build step for all other examples.

[sudo-barun]

@galvez I think build step for other examples is unnecessary. The steps are same other than changing directory. The last point should be enough to cover other examples.

[mxstbr]

@sudo-barun you are incorrect. Without running pnpm build, all the other examples throw an error like this:

You have to run pnpm install && pnpm build && pnpm start to get them to run.

[sudo-barun]

@mxstbr Thanks for the correction. I completely forgot that part. My bad.

I will update the PR soon.