[Netconf] WGLC on netconf-event-notifications-13

[Qin Wu <[e-mail]>]

Hi:
I have read the latest version of netconf event notification and believe it is ready for publication, here is a few comments:
1. Section 5
The first sentence in paragraph 1 discuss how to encode notification messages over NETCONF protocol, 
but it is not clear how to encode notification messages transported over RESTCONF protocol? additional text to clarify?

For second paragraph, I think we should emphasize all notifications and RPC are carried in the same session, how about the following proprosed text:
"
For dynamic subscriptions, all notification messages MUST be sent in a same
NETCONF transport session used by the "establish-subscription" RPC.
"
2. Section 7, paragraph 2 and paragraph 2, the 1st bullet:
Why JSON encoding is underlined? Why is limited to XML encoding?

3.Section 7 paragraph 2, the 1st bullet:
      "In case of error responses to an "establish-subscription" or
      "modify-subscription" request there is the option of including an
      "error-info" node."

Where "error-info" node is included? <rpc-error> element?

"  The yang-data included within "error-info" SHOULD NOT include the
      optional leaf "error-reason", as such a leaf would be redundant
      with information that is already placed within the
      "error-app-tag".
"


where yang-data included in "error-info" defined? I only see something similar defined in RFC8040 for error-info.

-Qin