--- a
+++ b/docs/source/notes/download.rst
@@ -0,0 +1,47 @@
+Download Code & Install
+========================================================================
+
+
+Download Code
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+
+.. code-block:: bash
+
+   $ git clone https://github.com/kexinhuang12345/DeepPurpose.git
+   $ ###  Download code repository 
+   $
+   $
+   $ cd DeepPurpose
+   $ ### Change directory to DeepPurpose 
+
+
+First time usage: setup conda environment
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. code-block:: bash
+
+   $ conda env create -f environment.yml  
+   $ ## Build virtual environment with all packages installed using conda
+   $ 
+   $ conda activate DeepPurpose
+   $ ##  Activate conda environment
+   $
+   $
+   $ conda deactivate ### exit
+
+
+
+Second time and later
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. code-block:: bash
+
+   $ conda activate DeepPurpose
+   $ ##  Activate conda environment
+   $
+   $
+   $ conda deactivate ### exit
+
+
+