update robots.xml

Author: PoojaB26

static/robots.txt

@@ -4,4 +4,4 @@ Disallow: /blog/
 Disallow: /troubleshooting/
 Allow: /
 
-Sitemap: https://docs.flutterflow.io/sitemap.xml
+Sitemap: https://docs.dreamflow.com/sitemap.xml