I have found some typos in docs folder using aspell. I have fixed them. The changes are as below : 

Doc/library/codecs.rst - cypher - cipher
Doc/library/email.rst - Protcol - Protocol
Doc/library/importlib.rst - abstact - abstract
Doc/library/xmlrpc.client.rst - unmarsalling - unmarshalling
Doc/license.rst - aheared to - adhered to
Doc/using/cmdline.rst - descibed - described
Doc/whatsnew/3.3.rst - accumlated - accumulated
Doc/whatsnew/3.6.rst - Lollilop - Lollipop
Doc/whatsnew/3.7.rst - direcory - directory

Find typos - 

find . -iname '*rst' | xargs -I{} sh -c "aspell --master=en_US --extra-dicts=en_GB --ignore 3 list < {}" | sort | uniq > typos.txt

Ignore case

tr '[:upper:]' '[:lower:]' < typos.txt | sort | uniq | less

This requires manually looking at output of less and then making changes.