GUIDE.md in rspreadsheet-0.1.0 vs GUIDE.md in rspreadsheet-0.1.1

@@ -30,9 +30,12 @@
 sheet[1,1]= value
 sheet.cells(1,1).value = value
 
 p sheet.A1.class          # => Rspreadsheet::Cell
 
+# relative cells
+sheet.cells(4,7).relative(-1,0) # => cell 3,7
+
 # build the top five list
 (1..5).each { |i| sheet[i,1] = i }
 sheet.columns(1).format.bold = true
 sheet.cells[2,1..5] = ['Vanilla', 'Pistacia', 'Chocolate', 'Annanas', 'Strawbery']