[css-env-1][editorial] Added WPTs

Author: SebastianZ

css-env-1/Overview.bs

@@ -11,6 +11,8 @@ TR: https://www.w3.org/TR/css-env-1
 Editor: Tab Atkins-Bittner, Google, w3cid 42199
 Former Editor: Dean Jackson, Apple, w3cid 42080
 Abstract: This specification defines the concept of [=environment variables=] and the ''env()'' function, which work similarly to custom properties and the ''var()'' function, but are defined globally for a document. These can be defined either by the user agent, providing values that can be used on the page based on information the UA has special access to, or provided by the author for "global" variables that are guaranteed to be the same no matter where in the document they're used.
+WPT Path Prefix: css/css-env/
+WPT Display: open
 </pre>
 
 <pre class=link-defaults>
@@ -65,6 +67,10 @@ to select a single value from the list or grid of possibilities,
 similar to selecting one element from a list in a traditional programming language
 with a syntax like <code>values[0]</code>.
 
+<wpt>
+env-parsing.html
+</wpt>
+
 Environment Variables {#environment}
 ====================================