diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 58c84d9..47246f1 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,4 +1,4 @@
-# 🛠 Contributing to zsh-github-dark
+# Contributing to zsh-github-dark
 
 Thanks for considering contributing! We keep things simple and clean —
 here’s how you can help:
@@ -42,12 +42,14 @@ Install it via Homebrew:
 brew install shfmt
 ```
 
-We use `shfmt` to automatically format `src/.zshrc` for consistency.
+### Pre-commit Hook (Optional)
 
-> **Note:** Syntax checking (`zsh -n`) and formatting validation (`shfmt -d`)
-> are handled automatically by GitHub Actions CI.
+Automatically format code before commits:
 
----
+```bash
+cp git-hooks/pre-commit .git/hooks/
+chmod +x .git/hooks/pre-commit
+```
 
 ### 🔹 Pre-Commit Hook Setup
 
@@ -80,10 +82,4 @@ These extensions are optional but highly recommended.
 
 ## 🛡 License
 
-By contributing, you agree that your code will be licensed under the
-[MIT License](LICENSE).
-
----
-
-Thank you for helping make this project better! Built with 💛 by
-[Yellow Pine](https://github.com/yellow-pine).
+By contributing, you agree your code will be licensed under the [MIT License](LICENSE).
diff --git a/README.md b/README.md
index 3239366..66475f0 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,7 @@ This project includes comprehensive test coverage for all user-facing functional
 ```
 
 **42 comprehensive tests** covering:
+
 - One-line installer (help, dry-run, uninstall, error handling)
 - Shell configuration (aliases, git integration, prompt, key bindings)
 - Terminal profile (XML validation, color definitions)
@@ -52,4 +53,4 @@ See [TROUBLESHOOTING.md](TROUBLESHOOTING.md) for common issues.
 
 ## License
 
-MIT © Cansin Yildiz
\ No newline at end of file
+MIT © Cansin Yildiz
diff --git a/SECURITY.md b/SECURITY.md
index 96dfcd6..24533fc 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -2,16 +2,28 @@
 
 ## Overview
 
-This repository contains personal terminal configuration files (zsh, Terminal profile) and does not ship or execute any application code. As such, it does not have a formal security update or vulnerability management process.
+This project provides terminal configuration files (zsh, Terminal profile) with minimal dependencies. Security is maintained through simplicity and transparency.
 
-There are no software dependencies, external services, or executable binaries bundled in this project.
+## What This Project Does
 
-## Reporting a Concern
+- Installs zsh configuration files to your home directory
+- Downloads and installs a Terminal.app profile
+- Installs minimal dependencies via Homebrew (lsd, coreutils)
+- No network connections during normal operation
+- No data collection or external services
 
-If you notice a serious concern affecting the safety, privacy, or integrity of these configuration files, you are welcome to open an issue on the GitHub repository:
+## Security Considerations
 
-🔗 [yellow-pine/zsh-github-dark Issues](https://github.com/yellow-pine/zsh-github-dark/issues)
+The installation script:
+- Only modifies files in your home directory
+- Backs up existing configurations before changes
+- Uses HTTPS for all downloads
+- Can be reviewed before execution
+- Provides dry-run mode for verification
 
-Please note:  
-Since this is a static configuration project, no frequent security updates are planned.
+## Reporting Security Issues
+
+For security concerns, please [open an issue](https://github.com/yellow-pine/zsh-github-dark/issues) with details.
+
+Since this is a configuration project with no runtime components, security updates are rare but will be addressed promptly if needed.
 
diff --git a/TROUBLESHOOTING.md b/TROUBLESHOOTING.md
index 3783585..8e5b5a3 100644
--- a/TROUBLESHOOTING.md
+++ b/TROUBLESHOOTING.md
@@ -2,15 +2,15 @@
 
 ## Installation fails
 
-**Problem**: `curl: command not found`  
+**Problem**: `curl: command not found`
 **Fix**: Install Xcode Command Line Tools: `xcode-select --install`
 
-**Problem**: `brew: command not found`  
-**Fix**: Install Homebrew from https://brew.sh
+**Problem**: `brew: command not found`
+**Fix**: Install Homebrew from <https://brew.sh>
 
 ## Prompt looks wrong
 
-**Problem**: No colors or broken characters  
+**Problem**: No colors or broken characters
 **Fix**: Set Terminal → Preferences → Profiles → "GitHub Dark" as default
 
 ## Command not found: lsd
@@ -20,12 +20,14 @@
 ## Still having issues?
 
 1. Start fresh:
+
    ```bash
    rm ~/.zshrc
    rm -rf ~/.zsh-github-dark
    ```
 
 2. Reinstall:
+
    ```bash
    curl -fsSL https://raw.githubusercontent.com/yellow-pine/zsh-github-dark/main/install.sh | bash
-   ```
\ No newline at end of file
+   ```