Change text to Source Code

Author: trungvose

frontend/src/app/project/pages/board/board.component.html

@@ -35,7 +35,7 @@
                target="_blank"
                rel="noopener">
                 <j-button className="btn-secondary"
-                          icon="github">Github Repo
+                          icon="github">Source Code
                 </j-button>
             </a>
         </div>