Update PyDoc topics and NEWS blurbs for 3.7.0a1

Lib/pydoc_data/topics.py

Misc/NEWS.d/3.7.0a1.rst

Misc/NEWS.d/next/Build/0019.bpo-28676.Wxf6Ds.rst

Misc/NEWS.d/next/Build/0020.bpo-15819.QVDr3E.rst

Misc/NEWS.d/next/Build/0021.bpo-27979.fR0KgM.rst

Misc/NEWS.d/next/Build/0022.bpo-26661.Z_HNbs.rst

Misc/NEWS.d/next/Build/0023.bpo-28258.iKtAHd.rst

Misc/NEWS.d/next/Build/0024.bpo-21085.2VvyUF.rst

Misc/NEWS.d/next/Build/0025.bpo-13756.sslhpC.rst

Misc/NEWS.d/next/Build/0026.bpo-21124.1bbArU.rst

Misc/NEWS.d/next/Build/0027.bpo-28248.KY_-en.rst

Misc/NEWS.d/next/Build/0028.bpo-28208.DtoP1i.rst

Misc/NEWS.d/next/Build/0029.bpo-28444.zkc9nT.rst

Misc/NEWS.d/next/Build/0030.bpo-26359.CLz6qy.rst

Misc/NEWS.d/next/Build/0031.bpo-10656.pR8FFU.rst

Misc/NEWS.d/next/Build/0032.bpo-28849.AzRRF5.rst

Misc/NEWS.d/next/Build/0033.bpo-20211.gpNptI.rst

Misc/NEWS.d/next/Build/0034.bpo-28538.FqtN7v.rst

Misc/NEWS.d/next/Build/0035.bpo-28762.Ru0YN_.rst

Misc/NEWS.d/next/Build/0036.bpo-23903.JXJ889.rst