Corrected resource text in changelog

CHANGELOG.md

 ## 1.14.0
 
 ### Core library changes
 * `dart:math`
   * `Random` added a `secure` constructor returning a cryptographically secure
     random generator which reads from the entropy source provided by the
     embedder for every generated random value.
 
 ## 1.13.0
 
 ### Core library changes
 * `dart:async`
   * `StreamController` added getters for `onListen`, `onPause`, and `onResume`
     with the corresponding new `typedef void ControllerCallback()`.
   * `StreamController` added a getter for `onCancel` with the corresponding
     new `typedef ControllerCancelCallback()`;
   * `StreamTransformer` instances created with `fromHandlers` with no
     `handleError` callback now forward stack traces along with errors to the
     resulting streams.
 
 * `dart:convert`
   * Added support for Base-64 encoding and decoding.
     * Added new classes `Base64Codec`, `Base64Encoder`, and `Base64Decoder`.
     * Added new top-level `const Base64Codec BASE64`.
 
 * `dart:core`
   * `Uri` added `removeFragment` method.
   * `String.allMatches` (implementing `Pattern.allMatches`) is now lazy,
     as all `allMatches` implementations are intended to be.
-  * `Resource` is deprecated in favor of the resource package.
-    See https://pub.dartlang.org/packages/resource to learn more. This is
-    the last release to contain the Resource class.
+  * `Resource` is deprecated, and will be removed in a future release.
 
 * `dart:developer`
   * Added `Timeline` class for interacting with Observatory's timeline feature.
   * Added `ServiceExtensionHandler`, `ServiceExtensionResponse`, and `registerExtension` which enable developers to provide their own VM service protocol extensions.
   
 * `dart:io`
   * **Breaking:** Secure networking has changed, replacing the NSS library
     with the BoringSSL library. `SecureSocket`, `SecureServerSocket`,
     `RawSecureSocket`,`RawSecureServerSocket`, `HttpClient`, and `HttpServer`
     now all use a `SecurityContext` object which contains the certificates
@@ skipping 581 matching lines @@
     they will keep the Dart process alive until they time out. This fixes the
     handling of persistent connections. Previously, the client would shut down
     immediately after a request.
 
   * **Breaking change:** `HttpServer` no longer compresses all traffic by
     default. The new `autoCompress` property can be set to `true` to re-enable
     compression.
 
 * `dart:isolate`: `Isolate.spawnUri` added the optional `packageRoot` argument,
   which controls how it resolves `package:` URIs.