Update 02-hello-world.mdx

[kon-foo]

Description

I changed the paths to match the paths used in the playground.
I changed let helloReference = capability.borrow() to let helloReference = capability!.borrow() to match the playground and prevent the error unknown member error.
I corrected "and the storage will longer contain an object under the given path." to "and the storage will no longer contain an object under the given path."

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• Targeted PR against master branch
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work
• Code follows the standards mentioned here
• Updated relevant documentation
• Re-reviewed Files changed in the Github PR explorer
• Added appropriate labels

[joshuahannan]

Thanks for pointing this out, but the docs here are actually correct! The path should be HelloAssetTutorial. I'll update the playground code. Can you revert those changes and only include the non-path related ones?

[kon-foo]

Sorry, I'm not good with git or github. How do I edit my commit/ add another commit to this pull request?

[joshuahannan]

You can edit the code in your local branch and commit and push the changes again and it should update the PR. Does that make sense?

[turbolent]

@joshuahannan Reverted the path changes. Do the rest of the changes look correct?