* 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
(cherry picked from commit 873a461bdf972ebd815baf50893700b0a2518213)
OpenConnect lacks full documentation which would also include how to create and
add use keys from the new PKI backend. For the time beeing we should not
confuse users.
