add link to Advance and Guide chapters

Author: chalin

public/docs/ts/latest/guide/index.jade

@@ -16,6 +16,12 @@ figure
 
 block js-alert
 
+- var guideData = public.docs[_docsFor].latest.guide._data;
+- var advancedLandingPage = '';
+- for(var page in guideData) {
+-   if (!guideData[page].basics && !guideData[page].hide) { advancedLandingPage = page; break; }
+- }
+- var advancedUrl = './' + advancedLandingPage + '.html'
 - var top="vertical-align:top"
 table(width="100%")
   col(width="15%")
@@ -26,7 +32,7 @@ table(width="100%")
       :marked
         The foundation for every page and sample in this documentation.
   tr(style=top)
-    td <b>Guide</b>
+    td <b><a href="./">Guide</a></b>
     td
       :marked
         The essential ingredients of Angular development.
@@ -42,7 +48,7 @@ table(width="100%")
         A step-by-step, immersive approach to learning Angular that
         introduces the major features of Angular in an application context.
   tr(style=top)
-    td <b>Advanced</b>
+    td <b><a href="!{advancedUrl}">Advanced</a></b>
     td
       :marked
         In-depth analysis of Angular features and development practices.