Added left menu and & right sidebar.

Author: rakeshAlgo

src/partials/body-landing-core-concept.hbs

@@ -1,4 +1,6 @@
-<div class="body container">
+<div class="body container-fluid">
+   {{> nav}}
+  {{> toc}}
   <main class="article" data-ceiling="topbar">
     <article class="doc landing-page-doc">
           {{{page.contents}}}

src/partials/body-landing-sdk.hbs

@@ -1,4 +1,6 @@
-<div class="body container">
+<div class="body container-fluid">
+  {{> nav}}
+  {{> toc}}
   <main class="article" data-ceiling="topbar">
     <article class="doc landing-page-doc">