Fix links to each project idea.

Author: kgodey

templates/project-ideas-page.html

@@ -10,13 +10,13 @@ <h1>Google Summer of Code 2019 Project Ideas</h1>
 
       <ul class="list-unstyled m3">
       {% for idea in ideas %}
-        <li class="my-2"><a href="#{{ idea.href }}">{{ idea.title }}</a></li>
+        <li class="my-2"><a href="#{{ idea._slug }}">{{ idea.title }}</a></li>
       {% endfor %}
       </ul>
     </div>
     {% for idea in ideas %}
       <div class="project-idea-card m-1 mb-4">
-        <h2 class="card-header"><a href="#{{ idea.href }}">{{ idea.title }}</a></h5>
+        <h2 class="card-header"><a name="{{ idea._slug }}">{{ idea.title }}</a></h5>
         <ul class="list-group list-group-flush">
           <li class="list-group-item"><strong>Description:</strong> {{ idea.description }}</li>
           <li class="list-group-item"><strong>Rationale:</strong> {{ idea.rationale }}</li>