Merge pull request #47 from akhmerov/patch-1

Formally → formerly in the readme

Author: SylvainCorlay

README.md

@@ -9,7 +9,7 @@
 
 # nbclient
 
-A client library for executing notebooks. Formally nbconvert's ExecutePreprocessor.
+A client library for executing notebooks. Formerly nbconvert's ExecutePreprocessor.
 
 **NBClient** is a tool for executing Jupyter Notebooks.