[New] Deploy Linodes Using Ansible and the linode_v4 Module. (#2518)

* [New] Deploy Linodes Using Ansible and the linode_v4 Module

* ansible linode tech edit

* ansible linode tech edit making sure I have all the changes back to Leslie

* added dictionary terms alphanumerics and idempotence

* Tech edits related to reproducing reported behavior

Initial tech edit ran into errors related to host key
checking. I ran through steps to try to reproduce
the errors, but was not able to.

Some misc. changes were found while editing w/ Heather
and those have been added.

* Add relative path to config for consistency.

Readd directory as example value for `ssh_keys`
in var file.

* updating to remove a few things that didn't need changing back and small copy edits

* final changes

* Copy Edit

Author: leslitagordita

ci/vale/dictionary.txt

@@ -17,6 +17,7 @@ ajp
 aker
 alives
 allmasquerade
+alphanumerics
 amavis
 amavisd
 amd64
@@ -543,6 +544,7 @@ icinga
 icingacli
 icmp
 icmpv6
+idempotence
 ident
 identrust
 idlist