chore(post): lint brand book post

Author: yellowcap

_posts/2023-02-27-brand-book.md

@@ -107,6 +107,4 @@ served us well. We are happy to share it here.
 
 ![Brandbook Page 49]({{ site.baseurl }}/assets/images/brandbook/brandbook-49.png)
 
-![Brandbook Page 50]({{ site.baseurl }}/assets/images/brandbook/brandbook-50.png)
-
-
+![Brandbook Page 50]({{ site.baseurl }}/assets/images/brandbook/brandbook-50.png)