restructured extra directory

extra/templates/alacritty/readme.md

@@ -0,0 +1,20 @@
+# Alacritty
+
+1. Download the [template file](alacritty.toml)
+
+2. Configure the template in `~/.config/clrsync/config.toml`:
+
+```toml
+[templates.alacritty]
+enabled = true
+input_path = '~/.config/clrsync/templates/alacritty.toml'
+output_path = '~/.config/alacritty/clrsync.toml'
+reload_cmd = ''
+```
+
+3. Import the generated color scheme in `~/.config/alacritty/alacritty.toml`:
+
+```toml
+[general]
+import = ["clrsync.toml"]
+```