docs: ✏️ Add text to introduction

Author: dc7290

docs/docs/intro.md

@@ -4,6 +4,13 @@ sidebar_position: 1
 
 # Introduction
 
+Next.js is a very good framework and has become indispensable for web development.  
+That is exactly why, once people get used to this developer experience, they may not want to develop without Next.js.
+(I am one of them lol.)
+
+However, Next.js' export functionality also has its limitations, the most discussed of which is **image optimization**.  
+https://github.com/vercel/next.js/discussions/19065
+
 Using this repository, you can get the full benefits of `next/image` even when using `next export` by doing image optimization at build time.
 
 This makes it possible to build a high performance website with this solution, whether you want to build a simple website or a completely static output.