update doc that web component version is not supported for `bento-dat…

…e-countdown` & `bento-date-display` (#36798)

* add disclaimer that web component version is not supported

* prettify

extensions/amp-date-countdown/1.0/README.md

@@ -2,11 +2,11 @@
 
 Displays a countdown sequence to a specified date. Refer to the [returned time parameters section](#returned-time-parameters) for information on the available time parameters.
 
-<!--
 ## Web Component
 
-TODO(https://go.amp.dev/issue/36619): Restore this section. We don't include it because we don't support <template> in Bento Web Components yet.
+We don't support the web component version of `bento-date-countdown` since `<template>` support is still being designed. This effort can be tracked in this [issue](https://go.amp.dev/issue/36619).
 
+<!--
 An older version of this file contains the removed section, though it's incorrect:
 
 https://github.com/ampproject/amphtml/blob/422d171e87571c4d125a2bf956e78e92444c10e8/extensions/amp-date-countdown/1.0/README.md

extensions/amp-date-display/1.0/README.md

@@ -2,11 +2,11 @@
 
 Displays time data that you can render in your page. By providing specific [attributes](#attributes) in the Bento Date Display tag, the Bento Date Display extension returns a list of time parameters, which you can pass to [an amp-mustache template](../../amp-mustache/amp-mustache.md) for rendering. Refer to the [list below for each returned time parameter](#returned-time-parameters).
 
-<!--
 ## Web Component
 
-TODO(https://go.amp.dev/issue/36619): Restore this section. We don't include it because we don't support <template> in Bento Web Components yet.
+We don't support the web component version of `bento-date-display` since `<template>` support is still being designed. This effort can be tracked in this [issue](https://go.amp.dev/issue/36619).
 
+<!--
 An older version of this file contains the removed section, though it's incorrect:
 
 https://github.com/ampproject/amphtml/blob/422d171e87571c4d125a2bf956e78e92444c10e8/extensions/amp-date-display/1.0/README.md