graph functionality

static/index.html

@@ -22,7 +22,7 @@
         <input id="search-input" type="search" placeholder="Search wiki" data-tr-placeholder="search-wiki" autocomplete="off" aria-label="Search wiki">
       </form>
       <section class="sidebar-section toc-section">
-        <div class="sidebar-heading" data-tr="contents">Contents</div>
+        <div class="sidebar-heading"><span data-tr="contents">Contents</span> <a id="context-link" class="context-link hidden" href="#">(<span data-tr="context">context</span>)</a></div>
         <nav id="toc-list" class="toc-list"></nav>
       </section>
       <details class="sidebar-section pages-section">
@@ -110,7 +110,7 @@
 
       <section id="graph-view" class="hidden">
         <header class="page-header">
-          <h1 data-tr="wiki-graph">Wiki graph</h1>
+          <h1 id="graph-title" data-tr="wiki-graph">Wiki graph</h1>
           <div id="graph-summary" class="muted"></div>
         </header>
         <div class="wiki-graph-shell">