diff --git a/README.rst b/README.rst
index e69de29..f6c8560 100644
--- a/README.rst
+++ b/README.rst
@@ -0,0 +1,25 @@
+Pytex
+=====
+
+Pytex is a simple package which make aa bridge between Latex and Python.
+
+texenv: Bring Python inside latex
+---------------------------------
+
+*texenv* is a jinja2 environment which allow to use python commands inside latex.
+
+- **\Block{#}**  is the equivalent of **{% block #%}** in Jinja2. Every python's commands will be run like in a script. **%-** is also available for line statement.
+- **\Var{#}** is the equivalent of **{{#}}** which print the statment.
+
+
+feed: converting template into tex files
+----------------------------------------
+
+pdflatex: Compile files with pdflatex
+-------------------------------------
+
+update_export_dict: import extract tools inside template
+--------------------------------------------------------
+
+
+
diff --git a/pytex/pytex.py b/pytex/pytex.py
index f20e204..0ed0050 100644
--- a/pytex/pytex.py
+++ b/pytex/pytex.py
@@ -23,6 +23,8 @@ EXPORT_DICT.update(__builtins__)
 def update_export_dict(new_dict):
     """Update global variable with new_dict
 
+    It allows to import new functions (or modules) inside templates.
+
     :param new_dict: needed tools across all template renders
     """
     EXPORT_DICT.update(new_dict)