diff --git a/How-to-Develop.md b/How-to-Develop.md
index 7a90426..a08cd8b 100644
--- a/How-to-Develop.md
+++ b/How-to-Develop.md
@@ -2,20 +2,27 @@ Thanks to the `nix`, we can easily develop the project in a reproducible environ
 
 # nix environment
 
-### Installing nix
+- **nix installation**
 
-https://nixos.org/download/#nix-install-linux
+  https://nixos.org/download/#nix-install-linux
 
-### Use home-manager to manage nix features (flakes) and direnv (Optional)
-https://nix-community.github.io/home-manager/index.xhtml#sec-install-standalone
+- **home-manager**
+  
+  Manage nix features (flakes) and direnv (Optional)
 
-### Use direnv for development environment activation
-https://github.com/nix-community/nix-direnv#via-home-manager
+  https://nix-community.github.io/home-manager/index.xhtml#sec-install-standalone
 
-### Install VSCode extension for automatically environment activation
-We have recommand extensions:
-- **pinage404.nix-extension-pack**: provide direnv and essentials for activating nix dev env
-- **rust-lang.rust-analyzer**: Rust language support
+- **direnv**
+
+  For development environment activation
+
+  https://github.com/nix-community/nix-direnv#via-home-manager
+
+- **VSCode extensions**
+
+  Automatically environment activation. We have recommand extensions:
+  - **pinage404.nix-extension-pack**: provide direnv and essentials for activating nix dev env
+  - **rust-lang.rust-analyzer**: Rust language support
 
 # shell interactions