diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a681dcf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+
+*.xml
+*.iml
diff --git a/docs/Makefile b/docs/Makefile
index d4bb2cb..c336a62 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -5,7 +5,7 @@
 # from the environment for the first two.
 SPHINXOPTS    ?=
 SPHINXBUILD   ?= sphinx-build
-SOURCEDIR     = .
+SOURCEDIR     = ./sources
 BUILDDIR      = _build
 
 # Put it first so that "make" without argument is like "make help".
diff --git a/docs/make.bat b/docs/make.bat
index 2119f51..a54f0df 100644
--- a/docs/make.bat
+++ b/docs/make.bat
@@ -7,7 +7,7 @@ REM Command file for Sphinx documentation
 if "%SPHINXBUILD%" == "" (
 	set SPHINXBUILD=sphinx-build
 )
-set SOURCEDIR=.
+set SOURCEDIR=./sources
 set BUILDDIR=_build
 
 if "%1" == "" goto help
diff --git a/environment.yml b/environment.yml
index 57adc9a..19740e7 100644
--- a/environment.yml
+++ b/environment.yml
@@ -6,6 +6,4 @@ dependencies:
   - pip
   - pip:
     - sphinx
-    - autodoc
-    - recommonmark
-    - sphinx-rtd-theme
+    - sphinxcontrib-programoutput