readme: Fix linting error

manu-chroma · manu-chroma · commit 78b686be44ae · 2017-08-12T22:26:03.000+05:30
diff --git a/README.rst b/README.rst
@@ -43,6 +43,7 @@ well)
 If installing alongside another CWL implementation then
 
 .. code:: bash
+
   pip install cwltool
 
 2. To install from source
