Update readme

Reviewed-on: #7

README.md

@@ -105,6 +105,21 @@ Notare includes built-in styles and supports custom style definitions.
 
 #### Built-in Styles
 
+| Style | Properties |
+|-------|------------|
+| `:title` | 26pt, bold, centered |
+| `:subtitle` | 15pt, italic, gray (#666666) |
+| `:quote` | italic, gray (#666666), indented |
+| `:code` | Courier New, 10pt |
+| `:heading1` | 24pt, bold |
+| `:heading2` | 18pt, bold |
+| `:heading3` | 14pt, bold |
+| `:heading4` | 12pt, bold |
+| `:heading5` | 11pt, bold, italic |
+| `:heading6` | 10pt, bold, italic |
+
+Note: `h1` through `h6` methods use the corresponding heading styles automatically.
+
 ```ruby
 Notare::Document.create("output.docx") do |doc|
   doc.p "This is a title", style: :title

lib/notare/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Notare
-  VERSION = "0.0.2"
+  VERSION = "0.0.3"
 end