Update proposal

Author: jasnell

XXX-url.md

@@ -14,17 +14,18 @@ the URL standard and fails to pass 160 of the WHATWG URL parsing tests.
 This proposal is to implement the WHATWG URL Standard by modifying the existing
 `url` module to provide an implementation of the `URL` object and associated
 APIs. Doing so improves the robustness of URL parsing, provides consistency
-with browser js code, and can eventually allow the reduction of node.js specific
+with browser JS code, and can eventually allow the reduction of node.js specific
 APIs.
 
-Initially, the implementation would be introduced as an undocumented
-experimental feature exposed via a new `URL` property in the `url` module.
+Initially, the implementation would be introduced as an *undocumented*
+experimental feature exposed via a new `URL` property in the `url` module
+*and as a global*.
 
 Because the existing `require('url')` module remains, there should be no
-backwards compatibility concerns. Once a decision is made to provide official,
-documented support for the new URL implementation, a decision would be made
-about whether to switch the internal uses of `require('url').parse()` to the
-new `URL` implementation.
+backwards compatibility concerns. Once the performance of the new URL impl is
+on par with the existing `url.parse()` implementation, `url.parse()` will go
+through a normal deprecation cycle and the new URL implementation will become
+a fully documentation and supported feature.
 
 The current implementation can be found at: