[Term entry] C# Math Function: .Log()

[gracekelly3]

Description

-Added the log term for C#
-Closes issue #7988

Issue Solved

Type of Change

• Adding a new entry

Checklist

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

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[mamtawardhani]

Hey @gracekelly3, can you please sign the CLA?

[mamtawardhani]

Hey @gracekelly3, this PR is raised from the main branch and that's why I'll have to close this. Please raise a new PR from the feature branch. Please follow the Contribution Guide.

Thank you!