Initial README

Add README explaining the project

Signed-off-by: Nicholas Mello <nick@nmello.dev>

README.md

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+# Dotfiles Manager
+
+A simple, reproducible, and safe dotfiles manager using Python and TOML.
+Supports strict syncing, offline installs, and safe restoration of previous configurations.
+
+---
+
+## Features
+
+- Manage multiple tools: Neovim, Fish, Bash, Git, Tmux, and more.
+- Folder and file support: Handles both directories (`~/.config/nvim`) and individual files (`~/.gitconfig`).
+- Strict sync for `store`: Ensures your Git repo always mirrors the current system configuration.
+- Safe install with backups: Existing system files are moved to `.old` before installing from the repo.
+- Restore: Revert to previous configurations using `.old` backups.
+- Clean: Remove all `.old` backups safely.
+- Flexible TOML config: Define repo paths, system paths, and file types in a structured, human-readable way.
+
+---
+
+## Installation
+
+Clone this repository anywhere you like:
+
+```bash
+git clone <repo-url> ~/dotfiles
+cd ~/dotfiles
+./manager <action> [tool1 tool2 ...]
+```