docs(readme): update README

README.md

@@ -9,64 +9,68 @@ and after you press any key it restores your buffers.
 
 ## 📺 Showcase
 
-
 https://github.com/NStefan002/donut.nvim/assets/100767853/f1b538ff-e0a8-4aac-b33b-8392f12b4bae
 
+## 📋 Installation
 
+> [!NOTE]
+>
+> -   Neovim version >= 0.9.5 is required.
+> -   No need to call `setup` function, donut.nvim is ready to use out of the box.
+> -   Only call `setup` function if you want to change the default configuration.
+> -   No need to lazy load it via Lazy.nvim, donut.nvim lazy loads by default.
 
-## 📋 Installation
 
 [lazy](https://github.com/folke/lazy.nvim):
 
 ```lua
 {
     "NStefan002/donut.nvim",
-    event = "VeryLazy",
-    opts = {
-        -- your config
-    },
+    version = "*",
+    lazy = false,
 }
 ```
 
-[packer](https://github.com/wbthomason/packer.nvim):
-
-```lua
-use({
-    "NStefan002/donut.nvim",
-    config = function()
-        require("donut").setup({
-            -- your config
-        })
-    end,
-})
-```
-
 [rocks.nvim](https://github.com/nvim-neorocks/rocks.nvim):
 
 `:Rocks install donut.nvim`
 
-### Configuration
+## ⚙️ Configuration
 
 <details>
-    <summary>Full list of options:</summary>
+    <summary>Default configuration</summary>
 
 ```lua
 {
-    timeout = 60,
+    timeout = 300,
     sync_donuts = false,
 }
 ```
 </details>
 
-## ✅☑️ TODO
-- [ ] add colors to donuts
-- [ ] center donut horizontally inside of the window
+\
+If you want to change the default configuration, you can call the `setup` function.
+
+```lua
+require("donut").setup({
+    timeout = 60,
+    sync_donuts = true,
+}
+```
+or you can just set `vim.g.donut_config` to a table with the configuration you want.
+
+```lua
+vim.g.donut_config = { timeout = 30, sync_donuts = false }
+```
+
 
 ## 🎭 Inspiration
-- [donut.c](https://www.a1k0n.net/2011/07/20/donut-math.html)
+
+-   [donut.c](https://www.a1k0n.net/2011/07/20/donut-math.html)
 
 ## Other Neovim screensavers
-- [zone](https://github.com/tamton-aquib/zone.nvim)
-- [cellular-automaton](https://github.com/Eandrju/cellular-automaton.nvim)
-- [drop](https://github.com/folke/drop.nvim)
-- [I'm waiting for this one](https://www.reddit.com/r/neovim/comments/1bsebep/raining_inside_neovim/)
+
+-   [zone](https://github.com/tamton-aquib/zone.nvim)
+-   [cellular-automaton](https://github.com/Eandrju/cellular-automaton.nvim)
+-   [drop](https://github.com/folke/drop.nvim)
+-   [I'm waiting for this one](https://www.reddit.com/r/neovim/comments/1bsebep/raining_inside_neovim/)