* Fix typos in openconnect.rst
change Cerbort->Certbot
Update first line to reflect that openconnect was introduced in 1.3-rolling (T2036)
* typo in dmvpn.rst
* ipsec.rst justification, minor phrasing changes
* l2tp.rst justification and phrasing changes.
* sstp.rst phrasing, justification changes
* Update ipsec.rst
rephrase for clarity and to avoid possessive plural apostrophe
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