fix: update SEO description

Author: phuctm97

README.md

@@ -1,6 +1,6 @@
 # [shell.how](https://shell.how) · [![CI](https://github.com/phuctm97/shell.how/actions/workflows/ci.yml/badge.svg)](https://github.com/phuctm97/shell.how/actions/workflows/ci.yml)
 
-Write down a shell command-line to see how it works in details.
+Explain shell commands using next-generation autocomplete from [Fig](https://fig.io).
 
 ## Contributing
 

pages/_app.tsx

@@ -13,7 +13,7 @@ export default function MyApp({ Component, pageProps }: AppProps) {
     <>
       <DefaultSeo
         title="shell.how - How this shell command works?"
-        description="Write down a shell command-line to see how it works in details."
+        description="Explain shell commands using next-generation autocomplete from Fig.io"
         openGraph={{
           type: "website",
           locale: "en_US",