Access to some reading on it:
Overall information about her background and the appointment
www.bbc.co.uk/news/articles/c2lxyxqzxkdo
quick quote
"Asked by the BBC what she will bring to her new role, she said: "I have had experiences as a nurse leading complex organisations, as the government's chief nursing officer, and also a diocese that is very diverse in London. So I have been prepared for some of this, but recognise I can't do it alone. I need to do it with other colleagues."
Dame Sarah said she realised that "being the first woman is historic, and I often go to schools, and particularly the young women sit up and listen, and they don't want to be the Bishop of London or the Archbishop of Canterbury, but it does allow them to think there are possibilities for them to fulfil their dreams".
She's not popular with more conservative (small c) members of the C of E internationally of course who have problems with both women having power and same sex relationships.
see this article
www.bbc.co.uk/news/articles/c179yvn08njo
Its primarily not exclusively C of E leaders in Africa, except for Kenya and SA.
(that one is an extremely interesting article actually).