Fix pipe docs
- [x] closes #27054

See the image below which highlights what i've done here

![image](https://user-images.githubusercontent.com/16733618/68074732-4f5e1b80-fd96-11e9-96ea-d2f40e07ee3e.png)

`flake8-rst doc/source --filename=/getting_started/basics.rst` runs clean

cc. @datapythonista to review