Update CHANGELOG.md

Fix typo

Closes https://github.com/dart-lang/sdk/pull/47763
https://github.com/dart-lang/sdk/pull/47763

GitOrigin-RevId: 139c9e4fdd92fab16f35732b1f9b6b7231c5bd36
Change-Id: Iad00c20007b839e054a772bed53e232e431104f6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/221164
Reviewed-by: Kevin Moore <kevmoo@google.com>
Commit-Queue: Kevin Moore <kevmoo@google.com>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f39f8d8..2c48329 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,7 +21,7 @@
   marked deprecated as previously announced.
   Its replacement is the `dart analyze` command.
   Should you find any issues, or missing features, in the replacement
-  command, kindly file [an issue]][].
+  command, kindly file [an issue][].
 
 [an issue]: https://github.com/dart-lang/sdk/issues/new