docs: remove Chapter 2 and ready for review.

dotstutor

@@ -141,16 +141,4 @@ we enhanced lots of nvim's default abilities that you can use them naturally
 except the mentioned above.
 
 Last but not least, you can press `<C-p>` to call the command panel and
-search keymaps for features you want at any time.
-
-Let's move on to the next chapter to learn how to customize nvimdots for users
-who want to make it more powerful and more suitable for their own needs.
-
-===============================================================================
- Chapter 2: Customization
-
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Chapter 2.1: Overview of structure
-
-We architected nvimdots with modularity in mind, so you can customize and
-maintain your own fork easily.
+search keymaps for features you want at any time!