GUIDE.md in rspreadsheet-0.2.12 vs GUIDE.md in rspreadsheet-0.2.14

@@ -5,28 +5,28 @@
 ````ruby
 @workbook = Rspreadsheet.open('./test.ods')
 ````
 and access its first sheet like this
 ````ruby
-@sheet = @workbook.worksheets(1)
+@sheet = @workbook.worksheet(1)
 ````
 ### Accessing cells
 
 you can get and set contents of cells using "verbatim" syntax like
 ````ruby
[e-mail](5).cells(4).value 
[e-mail](5).cells(4).value = 10
[e-mail](5).cell(4).value 
[e-mail](5).cell(4).value = 10
 ````
 or using "brief" syntax like
 ````ruby
 @sheet[5,4]
 @sheet[5,4] = 10
 ````
 
 You can mix these two at will, for example like this
 ````ruby
-@row = @sheet.rows(5)
+@row = @sheet.row(5)
 @row[4] = 10
 ````
 
 ## Examples
 
@@ -35,7 +35,8 @@
 
 ## Conventions
   * **all indexes are 1-based**. This applies to rows, cells cordinates, and all array like structures like list od  worksheets etc. Spreadsheet world is 1-based, ruby is 0-based do I had to make a decision. I intend to make an global option for this, but in early stage I need to keep things simple. 
   * with numeric coordinates row always comes before col as in  (row,col)
   * with alphanumerical col always comes before row as in F12
-  * Shorter syntax worksheet[x,y] returns value, longer syntax worksheet.cells(x,y) return cell objects. This allows to work conviniently with values using short syntax and access the cell object if needed (to access formatting for example).
+  * Shorter syntax worksheet[x,y] returns value, longer syntax worksheet.cell(x,y) return cell objects. This allows to work conviniently with values using short syntax and access the cell object if needed (to access formatting for example).
+  * Note: currently plural and singular like sheet/sheets, row/rows, cell/cells can be used intergangebly, but there is a (discussion)[https://github.com/gorn/rspreadsheet/issues/10] about this and in future versions we might use singular style for methods and plural for array style.