html: add package doc.

Fixes #2857.

R=r, adg
CC=golang-dev
https://golang.org/cl/5635046

diff --git a/src/pkg/html/escape.go b/src/pkg/html/escape.go
index c0b5262af83a712ba572982a3daaa8ab6607dd87..dbe1b9cd37981676c43af306cfec8bfffa741598 100644 (file)
--- a/src/pkg/html/escape.go
+++ b/src/pkg/html/escape.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// Package html provides functions for escaping and unescaping HTML text.
 package html
 
 import (