Update styles

src/main/jflex/chocopy/pa1/ChocoPy.jflex

@@ -180,6 +180,8 @@ if True:
       }
   }
 }
+
+
 <AFTER> {
 
   /* Delimiters. */
@@ -254,14 +256,18 @@ if True:
  
   /*Identifiers*/
   {Identifiers}                  { return symbol(ChocoPyTokens.ID, yytext()); }
+  
   /* Whitespace. */
   {WhiteSpace}                   { /* ignore */ }
+  
   /* Comment. */
   {Comments}                     { /* ignore */ }
 }
 <STR>{
     {StringLiteral}              { currString += yytext(); }
+    
     \\$                          { /*'\' at the end of line, do nothing.*/ }
+    
     "\""                         { yybegin(AFTER); return symbolFactory.newSymbol(ChocoPyTokens.terminalNames[ChocoPyTokens.STRING], ChocoPyTokens.STRING,
                                    new ComplexSymbolFactory.Location(str_l, str_c),
                                    new ComplexSymbolFactory.Location(yyline + 1,yycolumn + yylength()),