Update examples/alternate-receive/alternate_receive.bal

Co-authored-by: Maryam Ziyad <maryamziyadm@gmail.com>

examples/alternate-receive/alternate_receive.bal

@@ -23,7 +23,7 @@ function getFirstFetched(string url1, string url2) returns string? {
         result -> w3;
     }
 
-    // Worker `w3` waits until one of the workers returns a non-error value. 
+    // Worker `w3` waits until one of the workers sends a non-error value. 
     worker w3 returns string? {
         // The value of the variable `result` is set as soon as
         // a non-error message is received from either worker `w1` or `w2`.