Fix broken link to test-rules user guide docs on GitHub (#290)

Author: e-pettersson-ericsson

src/main/resources/templates/test-rules.html

@@ -152,7 +152,7 @@ <h5 class="modal-title">Usage Information</h5>
             <div class="modal-body modal-height-fit">
                 <p id="infoContent" class="pre"></p>
                 <div class="text-center">
-                    <a href="https://github.com/eiffel-community/eiffel-intelligence-frontend/blob/master/wiki/markdown/test-rules.md"
+                    <a href="https://github.com/eiffel-community/eiffel-intelligence-frontend/blob/master/wiki/test-rules.md"
                         target="_blank" rel="noopener noreferrer" style="text-decoration: none;">Test Rules User
                         Guide</a>
                 </div>