docs: remove redundant dividers - GitHub auto-renders lines above h2 headings

- remove all --- dividers between sections
- GitHub already adds thin lines above ## headings automatically
- prevents double-line visual clutter
- cleaner, more standard README appearance

Author: xcutiboo

README.md

@@ -37,8 +37,6 @@
   <br>
 </div>
 
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 ## 💭 What Even Is This?
 
 Kitty terminal is great. Reading 400+ config options to change your font size? Not so great.
@@ -72,8 +70,6 @@ She's Kitty Terminal's ghost cat mascot if someone dropped her in pink paint and
 - **Symbol Mapping** – Powerline/Nerd Fonts without needing patched fonts.
 - **Background Effects** – Blur, opacity, and tint with accurate rendering.
 
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 ## 🚀 Quick Start
 
 ### Using Confitty
@@ -101,8 +97,6 @@ cp kitty.conf ~/.config/kitty/
 
 Click **Import** and select your `kitty.conf`. Confitty parses it and populates the visual editor. Complex configs (custom kittens, include directives, environment variables) are preserved in the output even if they don't map to visual controls.
 
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 ## ⚙️ How It Works
 
 Confitty uses a **smart diff algorithm** that exports only the settings that differ from Kitty's defaults:
@@ -116,8 +110,6 @@ Confitty uses a **smart diff algorithm** that exports only the settings that dif
 - ✅ Avoids overriding defaults that may improve in future Kitty updates.
 - ✅ Makes it easy to track exactly what you've customized.
 
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 ## 🛠️ Development
 
 ### Prerequisites
@@ -159,8 +151,6 @@ Output directory: `dist/confitty/`
 
 **Architecture:** 100% client-side. No backend required; runs entirely in the browser.
 
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 ## 🤝 Contributing
 
 Contributions are welcome! See [**CONTRIBUTING.md**](./CONTRIBUTING.md) for: