Added apidoc at user_guide

docs/index.rst

@@ -20,7 +20,7 @@ Documentation
 * How to use the o3skim :doc:`getting_started/cli`
 
 .. toctree::
-   :maxdepth: 1
+   :maxdepth: 2
    :hidden:
    :caption: Getting started
 
@@ -33,15 +33,15 @@ Documentation
 **User guide**
 
 * Create your :doc:`user_guide/source-file` to point what to skim.
-* Learn how to skim by reading the :doc:`user_guide/API-reference`
+* Learn how to skim by reading the :doc:`user_guide/o3skim`
 
 .. toctree::
-   :maxdepth: 1
+   :maxdepth: 2
    :hidden:
    :caption: User guide:
 
    user_guide/source-file
-   user_guide/API-reference
+   user_guide/o3skim
 
 
 **Developer guide**
@@ -50,7 +50,7 @@ Documentation
 * How to run and create new :doc:`dev_guide/tests`
 
 .. toctree::
-   :maxdepth: 1
+   :maxdepth: 2
    :hidden:
    :caption: Developer guide:
 

docs/user_guide/API-reference.rst

-API-reference
-==================================
\ No newline at end of file

docs/user_guide/o3skim.rst

+o3skim package
+==============
+
+Submodules
+----------
+
+o3skim.sources module
+---------------------
+
+.. automodule:: o3skim.sources
+   :members:
+   :undoc-members:
+   :show-inheritance:
+
+o3skim.utils module
+-------------------
+
+.. automodule:: o3skim.utils
+   :members:
+   :undoc-members:
+   :show-inheritance:
+
+
+Module contents
+---------------
+
+.. automodule:: o3skim
+   :members:
+   :undoc-members:
+   :show-inheritance: