fix(comment): disable gitment on index page

Author: ppoffice

layout/comment/gitment.ejs

@@ -2,16 +2,16 @@
 	<link rel="stylesheet" href="https://imsun.github.io/gitment/style/default.css">
 	<script src="https://imsun.github.io/gitment/dist/gitment.browser.js"></script>
 	<script>
-		var gitment = new Gitment({
-			owner: '<%= theme.comment.gitment.owner %>',
-			repo: '<%= theme.comment.gitment.repo %>',
-			oauth: {
-				client_id: '<%= theme.comment.gitment.client_id %>',
-				client_secret: '<%= theme.comment.gitment.client_secret %>',
-			},
-		})
-		gitment.render('commentContainer')
+		if (document.getElementById('comments')) {
+			var gitment = new Gitment({
+				owner: '<%= theme.comment.gitment.owner %>',
+				repo: '<%= theme.comment.gitment.repo %>',
+				oauth: {
+					client_id: '<%= theme.comment.gitment.client_id %>',
+					client_secret: '<%= theme.comment.gitment.client_secret %>',
+				},
+			})
+			gitment.render('comments')
+		}
 	</script>
-	<% } else { %>
-	<div id="commentContainer"></div>
 <% } %>