Restructure examples folder (#47)

Split examples into separate markdown files, each containing a description, sample code, and a screenshot of the resulting xlsx document.

The script `generate.rb` is provided to actually generate the example documents by executing the sample code contained in the markdown files.

1 files changed, 28 insertions, 0 deletions

diff --git a/examples/header_footer_example.md b/examples/header_footer_example.md
new file mode 100644
index 00000000..d8f7a50f
--- /dev/null
+++ b/examples/header_footer_example.md
@@ -0,0 +1,28 @@
+## Description
+
+You could add header and footer to the sheet, even with the templating of excel.
+
+## Code
+
+```ruby
+require 'axlsx'
+
+p = Axlsx::Package.new
+wb = p.workbook
+
+header_footer = {
+  different_first: false,
+  odd_header: '&L&F : &A&R&D &T',
+  odd_footer: '&C&Pof&N'
+}
+
+wb.add_worksheet(name: 'Header & Footer', header_footer: header_footer) do |sheet|
+  sheet.add_row ['this sheet has a header and a footer']
+end
+
+p.serialize 'header_footer_example.xlsx'
+```
+
+## Output
+
+![Output](images/header_footer_example.png "Output")