PR for :rise and :kerning in issue#520 (#527)

* PR for :rise and :kerning in issue#520

* Update para.rb

replaced 'baseline-shift' with 'vertical-align'

scarpe-components/lib/scarpe/components/calzini/para.rb

@@ -53,7 +53,9 @@ def text_specific_styles(props)
                 "italic"
             else
                 nil
-            end
+            end,
+      :'letter-spacing' => props["kerning"] ? "#{props["kerning"]}px" : nil,
+      :'vertical-align' => props["rise"] ? "#{props["rise"]}px" : nil
     }.compact
 
     s2 = {}