[gnome-builder] doc: add TOC to top of exploring

[Christian Hergert <chergert src gnome org>]

commit 104ca873925a058b5fde5ec55fab47c02a5a029c
Author: Christian Hergert <chergert redhat com>
Date:   Wed Mar 8 21:30:37 2017 -0800

    doc: add TOC to top of exploring

 doc/exploring.rst |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/doc/exploring.rst b/doc/exploring.rst
index a3118d0..614c742 100644
--- a/doc/exploring.rst
+++ b/doc/exploring.rst
@@ -4,6 +4,15 @@ Exploring the Interface
 
 The following sections will help you get to know a few aspects of Builder.
 
+ * `Project Greeter`_
+ * `Workbench Window`_
+ * `Header Bar`_
+ * `Switching Perspectives`_
+ * `Showing and Hiding Panels`_
+ * `Build your Project`_
+ * `Preferences`_
+ * `Command Bar`_
+
 Project Greeter
 ===============