docs(webassembly): fix typos and code fences

[rafaelcoelhox]

Fixes small issues in the WebAssembly/WASI guide:

• Corrects typos and wording issues
• Fixes the broken Yarn code fence
• Updates the pnpm TypeScript init command to include tsc

Validation:

• bun run format
• bun run build

[akku1139]

why did you close it?

[rafaelcoelhox]

@akku1139 I thought I was missing something.

[rafaelcoelhox]

@akku1139 Do these changes make sense to you? Is there anything else you think I should add or adjust?

[akku1139]

Fixing typos is important for everyone, there are some such commits in this repo as well.
This PR is amazing, you can also improve further.
(I'm no English expert or native speaker, but) the beginning of the sentence should be capitalized.

check out -> Check out

website/docs/getting-started/webassembly-wasi.md

Line 16 in db3407e

Want to peek at the WASI interface yourself? check out [`wasi:http`][wasi-http]

(it may not be important)

[rafaelcoelhox]

@akku1139 Thanks. I fixed the capitalization in that sentence (check out -> Check out) and pushed the update.

[yusukebe]

LGTM!

[yusukebe]

@rafaelcoelhox @akku1139 Nice catch! Thanks.

[rafaelcoelhox]

@yusukebe Thank you! It was a pleasure to contribute.