Fix the nav-items links

[YoshithaRathnayake]

Purpose

The purpose of this PR is to fix #54

Goals

Fixing the nav-items links

Approach

I fixed the nav-items links

Screenshots

No Screenshots

Preview Link

https://yoshitharathnayake.github.io/sack-blog/

Checklist

• [x] This PR doesn't commit any keys, passwords, tokens, usernames, or other secrets.
• [x] I have read and understood the development best practices guidelines
• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation

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