typos corrected in datasets_reg.html

helpfiles/FSDA/datasets_reg.html

@@ -809,7 +809,7 @@ <h2 class="title">Regression Data Sets</h2>
 	  imported&nbsp; from Ukraine into Lithuania. The observed period goes from January 2008 
 	  to January 2018 (this 
 	  is product with nomenclature P17049075).<br>In principle dataset 
-	  TTsugar should be a super-set of dataset P17049075 contained in 
+	  TTsugar should be a super-set of dataset <tt>P17049075</tt> contained in 
 	  mat file <tt>TTP17049075</tt>. However there are small differences 
 	  because of the revisions of the trade data done in the years in order to correct possible mistakes. 
 	  </td>