Update operators.md

[manojchandra10]

Description

Corrected the Name of the sizeof operator in the Miscellaneous Operators table. The previous description inaccurately stated it was an "Addition Assignment". It now correctly states that sizeof returns the size (in bytes) of a variable or data type.

Issue Solved

Type of Change

• Editing an existing entry (fixing a typo, bug, issues, etc)

Checklist

• All writings are my own.
• My entry follows the Codecademy Docs style guide.
• My changes generate no new warnings.
• I have performed a self-review of my own writing and code.
• I have checked my entry and corrected any misspellings.
• I have made corresponding changes to the documentation if needed.
• I have confirmed my changes are not being pushed from my forked main branch.
• I have confirmed that I'm pushing from a new branch named after the changes I'm making.
• I have linked any issues that are relevant to this PR in the Issues Solved section.

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[manojchandra10]

Hi @Dusch4593, @SSwiniarski, @mamtawardhani, @yangc95, would any of you be able to review this pull request if you have write access? Thank you!

[mamtawardhani]

Hey @manojchandra10 can you please sign the CLA above?