Update README

Author: kelvins

README.md

@@ -107,8 +107,8 @@ In order to achieve greater coverage and encourage more people to contribute to
                 </a>
             </td>
             <td> <!-- Rust -->
-                <a href="./CONTRIBUTING.md">
-                    <img align="center" height="25" src="./logos/github.svg" />
+                <a href="./src/rust/Dijkstra.rs">
+                    <img align="center" height="25" src="./logos/rust.svg" />
                 </a>
             </td>
             <td> <!-- Scala -->