add : seo optimization

Author: vigneshsnaik

src/layouts/BaseLayout.astro

@@ -27,7 +27,7 @@ const {
     <meta name="author" content="Vignesh S Naik" />
     <meta
       name="keywords"
-      content="Vignesh S Naik, software developer, projects, portfolio, skills, contact"
+      content="Vignesh S Naik, Software Developer, Portfolio, Computer Science, Programming, Web Development, React, Node.js, Express.js, Firebase, MongoDB, Astro, GitHub Projects, Algorithms, Data Structures, Blockchain, Smart Contracts, NFT, Airbnb Data Analysis, VizCode, ChainAsset, xTend, Zenith, Linux, Docker, Figma, Canva, API Development, Hackathon, Mechack, MEC Thrikkakara, Code Visualizer, Online Compiler, CI/CD, DevOps, Python, JavaScript, TypeScript, React developer portfolio, blockchain projects, smart contract developer, online compiler with Node.js, full-stack developer with MongoDB, data structures and algorithms expert, fintech app development, CI/CD pipelines, hackathon project showcase, API development in Express.js, interactive data visualizations"
     />
     <meta property="og:title" content={title} />
     <meta property="og:description" content={description} />