Fixed inconsistent formattings

- Added missing Response headers
- Fixed wrong indentation level of the Response header in Isses/Labels.md
- Removed the spaces in a Isses/Comments.md table to match all other tables

Author: bibo38

Administration/Users.md

@@ -97,6 +97,8 @@ Status: 200 OK
 DELETE /admin/users/:username
 ```
 
+### Response
+
 ```
 Status: 204 No Content
 ```

Issues/Comments.md

@@ -73,9 +73,9 @@ GET /repos/:username/:reponame/issues/comments
 
 ### Parameters
 
-| Name | Type | Description |
-| --- | --- | --- |
-| since | string | Only comments updated at or after this time are returned. This is a timestamp in RFC3339 format: **2006-01-02T15:04:05Z07:00**|
+|Name|Type|Description|
+|----|----|-----------|
+|since|string|Only comments updated at or after this time are returned. This is a timestamp in RFC3339 format: **2006-01-02T15:04:05Z07:00**|
 
 ### Response
 

Issues/Labels.md

@@ -232,8 +232,8 @@ Status: 200 OK
 DELETE /repos/:username/:reponame/issues/:index/labels
 ```
 
-#### Response
+### Response
 
 ```
 Status: 204 No Content
-```
+```

Users/Followers.md

@@ -99,6 +99,8 @@ Status: 204 No Content
 DELETE /user/following/:username
 ```
 
+### Response
+
 ```
 Status: 204 No Content
 ```

Users/Public Keys.md

@@ -112,6 +112,8 @@ Status: 201 Created
 DELETE /user/keys/:id
 ```
 
+### Response
+
 ```
 Status: 204 No Content
 ```