Adding missing images in concepts section
diff --git a/rtd/source/_static/images/1000-foot-view.png b/rtd/source/_static/images/1000-foot-view.png
new file mode 100644
index 0000000..2fe3c16
--- /dev/null
+++ b/rtd/source/_static/images/1000-foot-view.png
Binary files differ
diff --git a/rtd/source/_static/images/cluster-overview.png b/rtd/source/_static/images/cluster-overview.png
new file mode 100644
index 0000000..18a86c3
--- /dev/null
+++ b/rtd/source/_static/images/cluster-overview.png
Binary files differ
diff --git a/rtd/source/_static/images/infrastructure-overview.png b/rtd/source/_static/images/infrastructure-overview.png
new file mode 100644
index 0000000..24aeecf
--- /dev/null
+++ b/rtd/source/_static/images/infrastructure-overview.png
Binary files differ
diff --git a/rtd/source/index.rst b/rtd/source/index.rst
index 7047644..168cefd 100644
--- a/rtd/source/index.rst
+++ b/rtd/source/index.rst
@@ -14,6 +14,7 @@
 
 .. toctree::
     :maxdepth: 2
+
     concepts