Add slides to WIP class composition slides

Author: LeaVerou

2025/11.md

@@ -140,8 +140,8 @@ When applicable, use these emoji as a prefix to the agenda item topic.
     | 0 | 30m | [Intl Energy Units](https://github.com/johanrd/proposal-intl-energy-units) for Stage 1 | Ben Allen |
     | 0 | 30m | [Intl Unit Protocol](https://github.com/sffc/proposal-intl-unit-protocol) for Stage 1 ([slides](https://docs.google.com/presentation/d/15gvLA5clt7f6nconED64JzFKi7D-buCyOjQSmKuhEFY/edit?slide=id.p#slide=id.p)) | Shane F Carr |
     | 0 | 30m | [Object.getNonIndexStringProperties](https://github.com/BridgeAR/array-get-non-index-string-properties) for Stage 1 or 2 | Ruben Bridgewater |
-    | 0 | 30m | [Class spread syntax](https://github.com/LeaVerou/proposal-class-spread) for Stage 1 | Lea Verou |
-    | 0 | 30m | [Class field introspection](https://github.com/LeaVerou/proposal-class-field-introspection) for Stage 1 | Lea Verou |
+    | 0 | 30m | [Class spread syntax](https://github.com/LeaVerou/proposal-class-spread) for Stage 1 ([slides](https://webplatform.design/projects/class-composition/talk/#class-spread-syntax)) | Lea Verou |
+    | 0 | 30m | [Class field introspection](https://github.com/LeaVerou/proposal-class-field-introspection) for Stage 1 ([slides](https://webplatform.design/projects/class-composition/talk/#class-field-introspection)) | Lea Verou |
 
 1. Longer or open-ended discussions
 
@@ -150,7 +150,7 @@ When applicable, use these emoji as a prefix to the agenda item topic.
     | 20m | Decorators proposal status update? | Jacob Smith |
     | 45m | Spec-defined or Implementation-defined limits? ([slides](https://docs.google.com/presentation/d/1NsezmIvFSr4qH4EXnh-cqOjikiUx196feKNM797m6fw/edit?slide=id.p#slide=id.p)) | Shane F Carr |
     | 30m | WHATWG Stages ([slides](https://docs.google.com/presentation/d/1I-3g1QFGaiazy98hf0RisfH5f0BVn6SRH5lfxxXJ2g4/edit?usp=sharing)) | Chengzhong Wu |
-    | 60m | Class composition: Past, present, and future | Lea Verou |
+    | 60m | Class composition: Past, present, and future ([slides](https://webplatform.design/projects/class-composition/talk/)) | Lea Verou |
 
 1. Overflow from timeboxed agenda items (in insertion order)