Create development section

docs/source/development.rst

@@ -0,0 +1,10 @@
+Development
+===========
+
+.. toctree::
+    :maxdepth: 2
+
+    code
+    alert_development_guide
+    mozdef_util
+    cicd

docs/source/index.rst

@@ -13,13 +13,10 @@ Table of Contents
   introduction
   demo
   installation
-  alert_development_guide
-  mozdef_util
   usage
   cloud_deployment
   advanced_settings
-  code
-  cicd
+  development
   screenshots
   references
   contributors