(DOCS-10079): Typo: Missing Comma

Author: nlarew

source/use-cases/storing-comments.txt

@@ -95,7 +95,7 @@ structure like the following:
        _id: ObjectId(...),
        discussion_id: ObjectId(...),
        parent_id: ObjectId(...),
-       slug: '34db/8bda'
+       slug: '34db/8bda',
        full_slug: '2012.02.08.12.21.08:34db/2012.02.09.22.19.16:8bda',
        posted: ISODateTime(...),
        author: {
@@ -254,7 +254,8 @@ comments, you can select by the ``slug`` field:
 
    comment = db.comments.find_one({
        'discussion_id': discussion_id,
-       'slug': comment_slug})
+       'slug': comment_slug
+   })
 
 You can retrieve a "sub-discussion," or a comment and all of its
 descendants recursively, by performing a regular expression prefix
@@ -266,7 +267,8 @@ query on the ``full_slug`` field:
 
    subdiscussion = db.comments.find_one({
        'discussion_id': discussion_id,
-       'full_slug': re.compile('^' + re.escape(parent_slug)) })
+       'full_slug': re.compile('^' + re.escape(parent_slug))
+   })
    subdiscussion = subdiscussion.sort('full_slug')
 
 Indexing