Merge branch 'master' of github.com:dart-lang/markdown

* 'master' of github.com:dart-lang/markdown:
  Enable code highlighting in example
  Update CommonMark bits to reference 0.27
  Deprecate escapeHtml

pkgs/markdown/CHANGELOG.md

diff --git a/pkgs/markdown/CHANGELOG.md b/pkgs/markdown/CHANGELOG.md
index 5dabafe..32fe122 100644
--- a/pkgs/markdown/CHANGELOG.md
+++ b/pkgs/markdown/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 ## 0.11.2
 
+* Fix reference code links inside blockquotes.
 * Add src/util.dart to exports.
 
 ## 0.11.1