Update CHANGELOG.md wrt template names

Related to https://dart-review.googlesource.com/c/sdk/+/232800

Closes https://github.com/dart-lang/sdk/pull/48482
https://github.com/dart-lang/sdk/pull/48482

GitOrigin-RevId: b553c853521e035bf4df431284fc28af72aa64a0
Change-Id: Ic49d669c5e665cd0f03a05b720b7cb4b62239b96
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/234561
Reviewed-by: Devon Carew <devoncarew@google.com>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3be94d5..d06a699 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -84,6 +84,16 @@
   The standalone `dartdoc` tool has been removed as
   previously announced. Its replacement is the `dart doc` command.
 
+- The template names used in the `dart create` command have been simplified,
+  and the current template names are now the set shown below. (Note: for
+  backwards compatibility the former template names can still be used.)
+```
+          [console] (default)    A command-line application.
+          [package]              A package containing shared Dart libraries.
+          [server-shelf]         A server app using package:shelf.
+          [web]                  A web app that uses only core Dart libraries.
+```
+
 ## 2.16.1 - 2022-02-09
 
 This is a patch release that fixes an AOT precompiler crash when building some