remove incorrect pypyr-slack from README

yaythomas · yaythomas · commit 35db07dfa8ea · 2017-05-12T19:14:22.000+01:00
diff --git a/README.rst b/README.rst
@@ -46,7 +46,7 @@ pip
 
   # pip install --upgrade pypyraws
 
-pypyr-slack depends on the ``pypyr`` cli. The above ``pip`` will install it for
+pypyraws depends on the ``pypyr`` cli. The above ``pip`` will install it for
 you if you don't have it already.
 
 Python version
