SEP-9: add proof_of_liveness field (#1323)

ecosystem/sep-0009.md

@@ -6,8 +6,8 @@ Title: Standard KYC Fields
 Author: stellar.org
 Status: Active
 Created: 2018-07-27
-Updated: 2022-10-05
-Version 1.7.0
+Updated: 2022-11-30
+Version 1.8.0
 ```
 
 ## Simple Summary
@@ -84,6 +84,7 @@ Name | Type          | [Format](#encodings) |Description
 `photo_proof_residence` | binary        | | Image of a utility bill, bank statement or similar with the user's name and address         
 `sex` | string        | | `male`, `female`, or `other`                                                                
 `proof_of_income` | binary        | | Image of user's proof of income document
+`proof_of_liveness` | binary	| | video or image file of user as a liveness proof
 
 ### Organization KYC fields
 
@@ -113,5 +114,6 @@ Address formatting varies widely from country to country and even within each co
 
 ## Changelog
 
+* `v1.8.0`: Add `proof_of_liveness` to Natural Person KYC field ([#1323](https://github.com/stellar/stellar-protocol/pull/1323)).
 * `v1.7.0`: Add `proof_of_income` to Natural Person KYC fields ([#1310](https://github.com/stellar/stellar-protocol/pull/1310)).
 * `v1.6.0`: Add `clabe_number` to Natural Person KYC fields ([#1202](https://github.com/stellar/stellar-protocol/pull/1202)).