escape text within code block

Author: dchenk

render_test.go

@@ -89,7 +89,7 @@ func TestSimple(t *testing.T) {
 
 func TestRender(t *testing.T) {
 
-	pairNames := []string{"ops1", "nested", "ordering", "list1", "list2", "list3", "list4", "indent", "code1", "code2"}
+	pairNames := []string{"ops1", "nested", "ordering", "list1", "list2", "list3", "list4", "indent", "code1", "code2", "code3"}
 
 	for _, n := range pairNames {
 		t.Run(n, func(t *testing.T) {

testdata/code3.html

@@ -0,0 +1,2 @@
+<pre>&lt;tag&gt;x&lt;/tag&gt;
+</pre><p>Stuff after code</p>

testdata/code3.json

@@ -0,0 +1,14 @@
+[
+	{
+		"insert": "<tag>x</tag>"
+	},
+	{
+		"insert": "\n",
+		"attributes": {
+			"code-block": true
+		}
+	},
+	{
+		"insert": "Stuff after code\n"
+	}
+]