Merge pull request #570 from gmlueck/gmlueck/vec-table-fix

Fix Asciidoc error in vec table

adoc/chapters/programming_interface.adoc

@@ -17589,7 +17589,7 @@ a@
 ----
 vec<RET, NumElements> operatorOP(const DataT& lhs, const vec& rhs)
 ----
-Construct a new instance of the SYCL [code]#vec# class template with
+   a@ Construct a new instance of the SYCL [code]#vec# class template with
 the same template parameters as the [code]#rhs# SYCL [code]#vec#
 with each element of the new SYCL [code]#vec# instance the result of
 an element-wise [code]#OP# logical operation between the [code]#lhs# scalar and each element of the [code]#rhs# SYCL [code]#vec#.