Update 16-09-19TPAC-1.md

Author: hayatoito

meetings/16-09-19TPAC-1.md

@@ -57,15 +57,15 @@ Dominic (Google): `<button>` produces something that is focusable and has an ARI
   - https://github.com/w3c/webcomponents/issues/78
   - Blink will implement this feature behind a flag to know whether this feature can be justified or not.
     We need feedback from web developers.
-  - Some sites which use Shadow DOM v0 can not switch to Shadow DOM v1 due to the lack of the support of this feature.
+  - Some sites which use Shadow DOM v0 have a concern about switching to Shadow DOM v1 due to the lack of the support of this feature.
 
-- Support Custom Pseudo-elements
+- Support Custom Pseudo-elements `::part(...)`
   - https://github.com/w3c/webcomponents/issues/300
-  - `@apply` and `::part`.
+  - `@apply` and/or `::part(...)`.
 
 - {DocumentOrShadowRoot or Slot}.activePath
   - https://github.com/w3c/webcomponents/issues/479
-  - It looks a reasonable proposal. Because `activeElement` does not meet developer's requirements.
+  - It looks a reasonable proposal because `activeElement` does not meet developer's requirements.
 
 If someone has a strong interest on any of the following features, please let us know that.
 It looks none of them is MUST-TO-DISCUSS topic. It looks there is no strong interests on any of them.