starting to document DS experiment API

sphinx/source/dm.ds_web_service.api.rst

+.. automodule:: dm.ds_web_service.api
+
+.. currentmodule:: dm.ds_web_service.api
+
+ExperimentDsApi
+-----------------
+
+.. autoclass:: dm.ds_web_service.api.experimentDsApi.ExperimentDsApi()
+    :show-inheritance: 
+    :members:  __init__, getExperimentTypes, getExperiments
+
+

sphinx/source/index.rst

@@ -12,6 +12,7 @@ The `dm` package contains python APIs for accessing Data Management services.
    :maxdepth: 4
    :caption: Contents:
 
+   dm.ds_web_service.api
    dm.daq_web_service.api
    dm.aps_bss.api