fix linking

index.bs

@@ -5871,7 +5871,7 @@ partial interface MLGraphBuilder {
         - an {{MLOperand}}. The output N-D tensor that contains the softmax results, of the same shape as *input*.
 </div>
 
-<table class='data' link-for="MLGraphBuilder/softmax(input)">
+<table class='data' link-for="MLGraphBuilder/softmax(input, axis)">
   <thead class=stickyheader>
     <tr>
       <th>input operand