Align .ss with registry.nic.ss listing and confirm with Registry Admin

[dnsguru]

I have an email out to an administrator of .ss that had addressed an expired DNSSEC issue in the .ss zone, as I caught some disparity between their documented zones and those in the PSL.

Looks like we need to add edu.ss, me.ss, and sch.ss and confirm ss will accept second level registrations.

registry.nic.ss says (on https://registry.nic.ss/login.jsp):

com.ss
net.ss
org.ss
biz.ss
**edu.ss**
**sch.ss** 
gov.ss
**me.ss**

PSL Currently says:

// ss : https://registry.nic.ss/
// Submitted by registry <technical@nic.ss>
ss
biz.ss
com.ss
edu.ss
gov.ss
net.ss
org.ss

[dnsguru]

I have encouraged the person I reached at .SS to join github and engage in the discussion to confirm we have this correct, and to add the appropriate _PSL TXT records to the zones accordingly
ss
biz.ss
com.ss
edu.ss
gov.ss
me.ss
net.ss
org.ss
sch.ss

[dnsguru]

This would revise the entry which was added via PR #882 to add three additional stubs:
edu.ss, sch.ss and me.ss

[ahmedlandi]

Hallo Frakes,

Thank you for reaching out. DNSSEC issue has since been resolved.

Also you my add edu.ss, sch.ss and me.ss to PSL.

Please let me know if there is anything else i can assist with.

[dnsguru]

This was all addressed in merged item #882 - closing