add outdated warning

Author: Cyprien Ricque

README.md

@@ -1,5 +1,7 @@
 # stdflow
 
+# README OUTDATED
+
 Data flow tool that transform your notebooks and python files into pipeline steps by standardizing the data input /
 output. [for Data science project]
 

setup.py

@@ -12,7 +12,7 @@
     packages=find_packages(),
     author="Cyprien Ricque",
     author_email="[email protected]",
-    description="A package that transform your notebooks and python files into pipeline steps by standardizing the data input / output.",
+    description="[alpha] A package that transform your notebooks and python files into pipeline steps by standardizing the data input / output.",
     long_description=open("README.md").read(),
     long_description_content_type="text/markdown",
     url="https://github.com/CyprienRicque/stdflow",