Rename TravellingSalesman

Author: kelvins

README.md

@@ -551,7 +551,7 @@ In order to achieve greater coverage and encourage more people to contribute to
                 </a>
             </td>
             <td> <!-- Go -->
-                <a href="./src/go/caixeiro_viajante.go">
+                <a href="./src/go/travelling_salesman.go">
                     <img align="center" height="25" src="./logos/golang.svg" />
                 </a>
             </td>