Update .CV Section

[groundcat]

I am creating this pull request to update the .CV block in the ICANN section.

Steps taken to verify information from the authoritative source:

1. Started at the IANA page: https://www.iana.org/domains/root/db/cv.html and identified the email address as well as the registry website for registration services http://www.dns.cv/
2. http://www.dns.cv/ is redirected to https://comprar.cv/
3. Located the email address provided on the registry website and sent an inquiry.
4. Received a direct reply from the domain registry OlaCV Support <support@ola.cv>, confirming the requested information.

Email confirmation:

Thank you for reaching out.
Registry link: ola.cv
.cv
com.cv
int.cv
nome.cv
net.cv
org.cv
pub.cv
id.cv - not open for purchase
edu.cv - open to educational institutions only

Therefore, updating the section to the following:

cv
com.cv
edu.cv
id.cv
int.cv
net.cv
nome.cv
org.cv
pub.cv