changed 4th level headings to 3rd level ones

Signed-off-by: avanshh99 <avanshetty196@gmail.com>

Author: avanshh99

content/en/kanvas/designer/comments/index.md

@@ -249,25 +249,26 @@ Kanvas does not track the read or unread status of messages inside comment threa
 
 ## Best Practices for Effective Design Reviews
 
-### Using Comment Features Effectively
+### Use Color-Coded Comments
 
 To make your reviews more structured, Kanvas offers a number of tools inside the comment system itself. Use them to streamline collaboration and clarify your feedback.
+You can use color to visually categorize your comments. Here is one common example:
 
-#### Use Color-Coded Comments
 
 <figure>
   <img src="./comments-color.png" alt="Categorize Comments" />
   <figcaption>Use color to visually categorize your comments</figcaption>
 </figure>
 
+
 - 🔴 **Security** concerns
 - 🔵 **Scalability** or performance-related notes
 - 🟢 **UI/UX** feedback
 - 🟡 **Open questions** or suggestions
 
 This makes it easy for team members to scan and prioritize feedback based on type.
 
-#### Use Annotation Arrows 
+### Use Annotation Arrows 
 
 Link your comment to a specific part of the design using **annotation arrows**. This reduces ambiguity and ensures the context of your comment is crystal clear.
 
@@ -279,7 +280,7 @@ Follow the steps about how to annotate the comment:
 </figure>
 
 
-#### Lock Important Comments
+### Lock Important Comments
 
 Lock comments in place to keep them visible even as you continue working. This is helpful for feedback that should remain persistent throughout the review cycle.
 
@@ -289,7 +290,7 @@ Example on how to lock your comment:
   <figcaption>Locking comments </figcaption>
 </figure>
 
-#### Group Related Comments
+### Group Related Comments
 
 Bundle multiple related comments using the **Group** feature. This keeps threads organized and easier to track, especially for complex designs with many parts.