Minor change to sidebar

_includes/sidebar.html

@@ -14,6 +14,7 @@
         {% if page.name == "CppCoreGuidelines.md" %}
       <!-- Items have to be added manually until for now -->
       <a class="sidebar-nav-item active" href="#main">Top</a>
+      <a class="sidebar-nav-item active" href="#S-introduction">In: Introduction</a>
       <a class="sidebar-nav-item active" href="#S-philosophy">P: Philosophy</a>
       <a class="sidebar-nav-item active" href="#S-interfaces">I: Interfaces</a>
       <a class="sidebar-nav-item active" href="#S-functions">F: Functions</a>
@@ -31,7 +32,7 @@
       <a class="sidebar-nav-item active" href="#S-profile">PRO: Profiles</a>
       <a class="sidebar-nav-item active" href="#S-gsl">GSL: Guideline support library</a>
       <a class="sidebar-nav-item active" href="#S-faq">FAQ: Answers to frequently asked questions</a>
-      
+
       <a class="sidebar-nav-item active" href="#S-naming">NL: Naming and layout</a>
       <a class="sidebar-nav-item active" href="#S-performance">PER: Performance</a>
       <a class="sidebar-nav-item active" href="#S-not">N: Non-Rules and myths</a>
@@ -39,7 +40,7 @@
       <a class="sidebar-nav-item active" href="#S-libraries">Appendix A: Libraries</a>
       <a class="sidebar-nav-item active" href="#S-modernizing">Appendix B: Modernizing code</a>
       <a class="sidebar-nav-item active" href="#S-discussion">Appendix C: Discussion</a>
-      <a class="sidebar-nav-item active" href="#S-glossary">Appendix C: Glossary</a>
+      <a class="sidebar-nav-item active" href="#S-glossary">Glossary</a>
       <a class="sidebar-nav-item active" href="#S-unclassified">To-do: Unclassified proto-rules</a>
       <button id="button">Highlighting</button>