Update README.rst with screenshot caption (#220)

cfperez · lrq3000 · commit 2d039fdd8d54 · 2016-08-16T15:46:42.000+02:00
Add note and link to bpython.
diff --git a/README.rst b/README.rst
@@ -29,6 +29,7 @@ Here's what the output looks like:
 ``tqdm(xrange(N))``.
 
 |Screenshot|
+    Screenshot using `bpython <http://www.bpython-interpreter.org/>`__
 
 It can also be executed as a module with pipes:
 
