lazy initialize html5entities

Author: yuin

_benchmark/go/go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/88250/lute v1.7.5
 	github.com/gomarkdown/markdown v0.0.0-20230322041520-c84983bdbf2a
 	github.com/russross/blackfriday/v2 v2.1.0
-	github.com/yuin/goldmark v1.2.1
+	github.com/yuin/goldmark v0.0.0
 	gitlab.com/golang-commonmark/markdown v0.0.0-20211110145824-bf3e522c626a
 )
 
@@ -22,3 +22,4 @@ require (
 )
 
 replace gopkg.in/russross/blackfriday.v2 v2.0.1 => github.com/russross/blackfriday/v2 v2.0.1
+replace github.com/yuin/goldmark v0.0.0 => ../../