Implement nested lists

README.md

@@ -195,6 +195,40 @@ Notare::Document.create("output.docx") do |doc|
 end
 ```
 
+#### Nested Lists
+
+Lists can be nested inside list items. Mixed types (bullets inside numbered or vice versa) are supported.
+
+```ruby
+Notare::Document.create("output.docx") do |doc|
+  doc.ol do
+    doc.li "First item"
+    doc.li "Second item" do
+      doc.ul do
+        doc.li "Nested bullet A"
+        doc.li "Nested bullet B"
+      end
+    end
+    doc.li "Third item"
+  end
+
+  # Deeply nested
+  doc.ul do
+    doc.li "Level 0"
+    doc.li "Has children" do
+      doc.ul do
+        doc.li "Level 1"
+        doc.li "Goes deeper" do
+          doc.ul do
+            doc.li "Level 2"
+          end
+        end
+      end
+    end
+  end
+end
+```
+
 ### Tables
 
 ```ruby
@@ -400,10 +434,11 @@ end
 | `link(url, text)` | Hyperlink with custom text |
 | `link(url) { }` | Hyperlink with block content |
 | `define_style(name, **props)` | Define a custom style |
-| `ul { }` | Bullet list |
-| `ol { }` | Numbered list |
+| `ul { }` | Bullet list (can be nested) |
+| `ol { }` | Numbered list (can be nested) |
 | `li(text)` | List item with text |
 | `li { }` | List item with block content |
+| `li(text) { }` | List item with text and nested content |
 | `table { }` | Table |
 | `tr { }` | Table row |
 | `td(text)` | Table cell with text |