Propose to fix some docs and examples

[tolgacangoz]

AFAIU; could I request rebuilding the docs site to update it according to the changes for the last year, since it says last-modified: Sun, 06 Jul 2025 21:56:52 GMT?

Proposed Changes
Updating imports and several explanations.

Types of changes
What types of changes does your code introduce? Put an x in all the boxes that apply:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist
Go over all the following points, and put an x in all the boxes that apply:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.
• I am aware that this is an nbdev project, and I have edited, cleaned, and synced the source notebooks instead of editing .py or .md files directly.