Updating TPAC agenda

Author: LJWatson

meetings/16-09-23TPAC-4.md

@@ -31,15 +31,12 @@ Please add your name, and agenda requests here by [editing a branch and making a
 
 ## Agenda
 ### HTML
-
-* HTML5.2
 #### 9am to 10am
-
 * Editor's update
  * WHATWG compatibility
  * Incubation
 
-#### 10.15am to 11.15am
+### 10.15am to 11.15am
 * Open technical issues
  * Modularisation