docs: update a small typo in 02-app/01-building-your-application/06-optimizing/01-images.mdx

[lauthieb]

Hello,

I just make this PR because the /me.png example is not in "remote images" section but in "local images", that's why I propose to edit this :)

Thank you!

Improving Documentation

• Run pnpm prettier-fix to fix formatting issues before opening the PR.
• Read the Docs Contribution Guide to ensure your contribution follows the docs guidelines: https://nextjs.org/docs/community/contribution-guide

[ijjk]

We might want to re-word this some more for clarity as this is referencing a /me.png value being provided as the source but instead the local image is showing a static image import.

This tweak is more correct than previously so seems good to land