add one more starter: gatsby-sseon-starter (#11080)

Author: SeonHyungJo

docs/starters.yml

@@ -1634,3 +1634,16 @@
     - GSAP ready
     - Nice devtools
     - Decorators
+- url: https://gatsby-sseon-starter.netlify.com/
+  repo: https://github.com/SeonHyungJo/gatsby-sseon-starter
+  description: Simple starter template for Gatsby
+  tags:
+    - Blog
+    - Disqus
+    - Markdown
+    - Styling:SCSS
+  features:
+    - SASS/SCSS
+    - Comes with React Helmet for adding site meta tags
+    - Add Disqus
+    - Nice Pagination