Add README with setup script documentation and package list

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Co-Authored-By: Claude <noreply@anthropic.com>

README.md

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+# Dotfiles
+
+Personal dotfiles and configuration managed with [Dotter](https://github.com/SuperCuber/dotter). Feel free to use this as inspiration or fork it for your own setup.
+
+## Setup
+
+Run the setup script to install dependencies via Homebrew and deploy configurations:
+
+```bash
+./setup.sh
+```
+
+### Options
+
+- `--reset` - Reset configuration and re-prompt for all variables
+- `--force-deploy` - Force deployment even if files already exist
+- `--skip-brew` - Skip Homebrew package installation
+
+### Installed Packages
+
+The setup script installs the following packages via Homebrew:
+
+- dotter, fish, dust, eza, gh, htop, go, jq, lazygit, neovim, asdf, bat, pandoc, ripgrep, zoxide, zellij, p7zip
+
+**macOS only:**
+- font-fira-code-nerd-font, orbstack
+
+## Included Configurations
+
+- Git
+- Neovim
+- Fish shell
+- Zellij
+- Htop
+- ASDF