Update improve-the-site.md

Author: Simran-B

.github/ISSUE_TEMPLATE/improve-the-site.md

@@ -1,6 +1,6 @@
 ---
 name: Improve the docs.github.com site
-about: Make a suggestions or report a problem on the docs.github.com website.
+about: Make a suggestion to improve the technical implementation of docs.github.com.
 title: ''
 labels: engineering
 assignees: ''