Implement many more nodes

Adds these new styling and formatting nodes
* strike
* highlight
* linebreaks
* pagebreaks
* Hyperlinks

README.md

@@ -58,6 +58,8 @@ Notare::Document.create("output.docx") do |doc|
     doc.i { doc.text "italic" }
     doc.text " and "
     doc.u { doc.text "underlined" }
+    doc.text " and "
+    doc.s { doc.text "strikethrough" }
   end
 
   # Nested formatting (bold + italic)
@@ -66,6 +68,13 @@ Notare::Document.create("output.docx") do |doc|
       doc.i { doc.text "bold and italic" }
     end
   end
+
+  # Show edits (strikethrough old, bold new)
+  doc.p do
+    doc.s { doc.text "old text" }
+    doc.text " "
+    doc.b { doc.text "new text" }
+  end
 end
 ```
 
@@ -146,10 +155,14 @@ end
 - `bold: true/false`
 - `italic: true/false`
 - `underline: true/false`
+- `strike: true/false` - strikethrough
+- `highlight: "yellow"` - text highlight (see colors below)
 - `color: "FF0000"` (hex RGB)
 - `size: 14` (points)
 - `font: "Arial"` (font family)
 
+**Highlight colors:** `black`, `blue`, `cyan`, `darkBlue`, `darkCyan`, `darkGray`, `darkGreen`, `darkMagenta`, `darkRed`, `darkYellow`, `green`, `lightGray`, `magenta`, `red`, `white`, `yellow`
+
 **Paragraph properties:**
 - `align: :left / :center / :right / :justify`
 - `indent: 720` (twips, 1 inch = 1440 twips)
@@ -246,6 +259,91 @@ Notare::Document.create("output.docx") do |doc|
 end
 ```
 
+### Line Breaks
+
+Use `br` for soft line breaks within a paragraph (text continues in the same paragraph but on a new line):
+
+```ruby
+Notare::Document.create("output.docx") do |doc|
+  doc.p do
+    doc.text "Line one"
+    doc.br
+    doc.text "Line two (same paragraph)"
+    doc.br
+    doc.text "Line three"
+  end
+
+  # Useful for addresses
+  doc.p do
+    doc.b { doc.text "Address:" }
+    doc.br
+    doc.text "123 Main Street"
+    doc.br
+    doc.text "Anytown, ST 12345"
+  end
+end
+```
+
+### Page Breaks
+
+Use `page_break` to force content to start on a new page:
+
+```ruby
+Notare::Document.create("output.docx") do |doc|
+  doc.h1 "Chapter 1"
+  doc.p "Content of chapter 1..."
+
+  doc.page_break
+
+  doc.h1 "Chapter 2"
+  doc.p "This starts on a new page."
+end
+```
+
+### Hyperlinks
+
+Add clickable links with `link`:
+
+```ruby
+Notare::Document.create("output.docx") do |doc|
+  # Link with custom text
+  doc.p do
+    doc.text "Visit "
+    doc.link "https://example.com", "our website"
+    doc.text " for more info."
+  end
+
+  # Link showing the URL as text
+  doc.p do
+    doc.text "URL: "
+    doc.link "https://example.com"
+  end
+
+  # Link with formatted content
+  doc.p do
+    doc.link "https://github.com" do
+      doc.b { doc.text "GitHub" }
+    end
+  end
+
+  # Links in lists
+  doc.ul do
+    doc.li do
+      doc.link "https://ruby-lang.org", "Ruby"
+    end
+    doc.li do
+      doc.link "https://rubyonrails.org", "Rails"
+    end
+  end
+
+  # Email links
+  doc.p do
+    doc.text "Contact: "
+    doc.link "mailto:hello@example.com", "hello@example.com"
+  end
+end
+```
+
 ### Complete Example
 
 ```ruby
@@ -296,6 +394,11 @@ end
 | `b { }` | Bold formatting |
 | `i { }` | Italic formatting |
 | `u { }` | Underline formatting |
+| `s { }` | Strikethrough formatting |
+| `br` | Line break (soft break within paragraph) |
+| `page_break` | Page break (force new page) |
+| `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 |