More documentation changes.

We'll need to think about a good structure for each component of Simba.
There are too many too list here.

Doc/sphinx/features.rst

@@ -1,5 +1,9 @@
 Feature overview
 ================
 
-Yo
+.. toctree::
 
+    scriptmanager.rst
+
+
+Most stuff here is probably misplaced anyway.

Doc/sphinx/scriptmanager.rst

@@ -0,0 +1,4 @@
+Script Manager
+==============
+
+Simba script manager. =}