Localize Security Best Practices article to Korean

[eazyhozy]

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This PR adds a Korean translation of the Security Best Practices article.

• Localized the content, title, and description
• Confirmed correct rendering on the landing page and article page after build

Reference: https://opensource.guide/ko/security-best-practices-for-your-project/

Before (as-is)

After (to-be)

[roeniss]

Hello, I reviewed the translation from the top then stopped at line 52 (before "## Avoid unwanted changes with protected branches" line) because I realized that the ko/security-best-practices-for-your-project.md and root security-best-practices-for-your-project.md have different text quite a lot.

I think it would be better to continue review after those original english (untranslated) files are updated to the latest version. Let me make another PR for that.

edit) here: #3582

[ahpook]

Thank you for this change @eazyhozy - once we get #3582 updated, could you please base your translation on that version of the doc? It was updated recently with a lot of good information.

[roeniss]

@eazyhozy are you still working on this? If not, I want to take this issue.

[eazyhozy]

@roeniss can you wait for me finishing this PR? I'll update soon. Thanks for your following-up.

[roeniss]

no problem

[jrsteve900]

TAMUOnCHAIN-identity-layer
Minimal onchain identity &referral attribution layer using SIWE (EIP-4361) . Phase1 focus on identity verification.

[jrsteve900]

TAMUOnCHAIN-identity-layer Minimal onchain identity &referral attribution layer using SIWE (EIP-4361) . Phase1 focus on identity verification.

[eazyhozy]

@ahpook @roeniss @tomthorogood

Thank you for reviewing and improving my PR.
I've just merged the latest main(ac9ebe8)and re-reviewed the change by myself.
Please review this PR.