Update 2019-06-05-pandas-viz.md

Author: datapythonista

_posts/2019-06-05-pandas-viz.md

@@ -55,6 +55,7 @@ We also can work on other pandas issues, for example:
 - PandasArray in API docs: <https://github.com/pandas-dev/pandas/issues/24507>
 - pyarrow failure: <https://github.com/pandas-dev/pandas/issues/26656>
 - Organise dependencies: <https://github.com/pandas-dev/pandas/issues/26659>
+- Remove isort dependency: <https://github.com/pandas-dev/pandas/issues/26661>
 - Feel free to propose yours
 
 As usual, we will give priority to join the sprint to the next people: