small optimization and readme update.

3 files changed, 20 insertions, 4 deletions

diff --git a/README.md b/README.md
index 2ad0144e..ede72eeb 100644
--- a/README.md
+++ b/README.md
@@ -56,6 +56,10 @@ Feature List
 
 **12. Auto filtering tables with worksheet.auto_filter
 
+**13. Export using shared strings or inline string
+
+**14. Output to disk or StringIO
+
 Installing
 ----------
 
@@ -258,6 +262,14 @@ To install Axlsx, use the following command:
      p.validate.each { |e| puts e.message }
      p.serialize("example.xlsx")
 
+     # alternatively, serilaize to StringIO
+     s = p.to_stream()
+     File.open('example_streamed.xlsx', 'w') { |f| f.write(s.read) }
+
+##Using Shared Strings
+
+     p.use_shared_strings = true
+     p.serialize("shared_strings_example.xlsx")
 
 #Documentation
 --------------
@@ -272,6 +284,11 @@ This gem has 100% test coverage using test/unit. To execute tests for this gem,
  
 #Changelog
 ---------
+- ** February.12.12**: 1.0.17 release
+   https://github.com/randym/axlsx/compare/1.0.16...1.0.17
+   - Added in support for serializing to StringIO
+   - Added in support for using shared strings table. This makes most of the features in axlsx interoperable with iWorks Numbers
+
 - ** February.2.12**: 1.0.16 release
    https://github.com/randym/axlsx/compare/1.0.15...1.0.16
    - Bug fix for schema file locations when validating in rails
diff --git a/lib/axlsx/workbook/workbook.rb b/lib/axlsx/workbook/workbook.rb
index b9db0a45..e2a8e73e 100644
--- a/lib/axlsx/workbook/workbook.rb
+++ b/lib/axlsx/workbook/workbook.rb
@@ -96,10 +96,8 @@ require 'axlsx/workbook/shared_strings_table.rb'
     #end
 
     # Creates a new Workbook
-    #
-    # @option options [Boolean] date1904. If this is not specified, we try to determine if the platform is bsd/darwin and set date1904 to true automatically.
-    # @option
-    #
+    # The recomended way to work with workbooks is via Package#workbook
+    # @option options [Boolean] date1904. If this is not specified, we try to determine if the platform is bsd/darwin and set date1904 to true automatically.    
     def initialize(options={})
       @styles = Styles.new
       @worksheets = SimpleTypedList.new Worksheet
diff --git a/lib/axlsx/workbook/worksheet/cell.rb b/lib/axlsx/workbook/worksheet/cell.rb
index 728bc22f..5ca5b759 100644
--- a/lib/axlsx/workbook/worksheet/cell.rb
+++ b/lib/axlsx/workbook/worksheet/cell.rb
@@ -24,6 +24,7 @@ module Axlsx
   class Cell
 
 
+    # An array of available inline styes.
     INLINE_STYLES = ['value', 'type', 'font_name', 'charset', 
                          'family', 'b', 'i', 'strike','outline', 
                          'shadow', 'condense', 'extend', 'u',