doc: add missing changelogs to assert docs

PR-URL: #15036
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

doc/api/assert.md

@@ -20,6 +20,9 @@ An alias of [`assert.ok()`][].
 <!-- YAML
 added: v0.1.21
 changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/15001
+    description: Error names and messages are now properly compared
   - version: v8.0.0
     pr-url: https://github.com/nodejs/node/pull/12142
     description: Set and Map content is also compared
@@ -105,7 +108,7 @@ parameter is undefined, a default error message is assigned.
 added: v1.2.0
 changes:
   - version: REPLACEME
-    pr-url: https://github.com/nodejs/node/pull/12142
+    pr-url: https://github.com/nodejs/node/pull/15001
     description: Error names and messages are now properly compared
   - version: v8.0.0
     pr-url: https://github.com/nodejs/node/pull/12142
@@ -345,6 +348,22 @@ assert.ifError(new Error());
 ## assert.notDeepEqual(actual, expected[, message])
 <!-- YAML
 added: v0.1.21
+changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/15001
+    description: Error names and messages are now properly compared
+  - version: v8.0.0
+    pr-url: https://github.com/nodejs/node/pull/12142
+    description: Set and Map content is also compared
+  - version: v6.4.0, v4.7.1
+    pr-url: https://github.com/nodejs/node/pull/8002
+    description: Typed array slices are handled correctly now.
+  - version: v6.1.0, v4.5.0
+    pr-url: https://github.com/nodejs/node/pull/6432
+    description: Objects with circular references can be used as inputs now.
+  - version: v5.10.1, v4.4.3
+    pr-url: https://github.com/nodejs/node/pull/5910
+    description: Handle non-`Uint8Array` typed arrays correctly.
 -->
 * `actual` {any}
 * `expected` {any}
@@ -392,6 +411,22 @@ parameter is undefined, a default error message is assigned.
 ## assert.notDeepStrictEqual(actual, expected[, message])
 <!-- YAML
 added: v1.2.0
+changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/15001
+    description: Error names and messages are now properly compared
+  - version: v8.0.0
+    pr-url: https://github.com/nodejs/node/pull/12142
+    description: Set and Map content is also compared
+  - version: v6.4.0, v4.7.1
+    pr-url: https://github.com/nodejs/node/pull/8002
+    description: Typed array slices are handled correctly now.
+  - version: v6.1.0
+    pr-url: https://github.com/nodejs/node/pull/6432
+    description: Objects with circular references can be used as inputs now.
+  - version: v5.10.1, v4.4.3
+    pr-url: https://github.com/nodejs/node/pull/5910
+    description: Handle non-`Uint8Array` typed arrays correctly.
 -->
 * `actual` {any}
 * `expected` {any}