doc: fix missing PR-URLs in YAML comments

Refs: nodejs/remark-preset-lint-node#139

PR-URL: #35454
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Ujjwal Sharma <ryzokuken@disroot.org>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Michael Dawson <midawson@redhat.com>

doc/api/assert.md

@@ -16,6 +16,7 @@ changes:
   - version:
       - v13.9.0
       - v12.16.2
+    pr-url: https://github.com/nodejs/node/pull/31635
     description: Changed "strict mode" to "strict assertion mode" and "legacy
                  mode" to "legacy assertion mode" to avoid confusion with the
                  more usual meaning of "strict mode".

doc/api/dgram.md

@@ -174,7 +174,8 @@ This method throws `EBADF` if called on an unbound socket.
 <!-- YAML
 added: v0.1.99
 changes:
-  - version: v0.10
+  - version: v0.9.1
+    commit: 332fea5ac1816e498030109c4211bca24a7fa667
     description: The method was changed to an asynchronous execution model.
                  Legacy code would need to be changed to pass a callback
                  function to the method call.

doc/api/domain.md

@@ -3,6 +3,7 @@
 deprecated: v1.4.2
 changes:
   - version: v8.8.0
+    pr-url: https://github.com/nodejs/node/pull/15695
     description: Any `Promise`s created in VM contexts no longer have a
                  `.domain` property. Their handlers are still executed in the
                  proper domain, however, and `Promise`s created in the main

doc/api/n-api.md

@@ -5204,6 +5204,7 @@ added: v8.0.0
 napiVersion: 1
 changes:
   - version: v8.6.0
+    pr-url: https://github.com/nodejs/node/pull/15189
     description: Added `async_context` parameter.
 -->