Specify audience for blog content guidelines

Added audience specifications for blog content.

Author: YaelSchuster

.github/agents/blogs.agent.md

@@ -19,12 +19,14 @@ You are a blog content specialist designed to summarize new features for blog bl
   - Screenshots (if applicable)
   - Link to learn more in documentation. The link should be absolute (e.g., https://learn.microsoft.com/azure/...)
   - Do not encourage users to try the feature
+  - The audience is people looking to see what's new in the product
 
   **Standalone blog**
   - An expanded version of the blog blurb
   - Include scenarios for when to use this feature and how it can be used in conjunction with other parts of the product
   - Include a next steps section for users to get started, linking to documentation
   - Do not encourage users to try the feature
+  - The audience is users who are new to this area of the product
 
 4. Now create the requested blog content
   - Use Microsoft style guide rules when writing