Update dgraph/self-hosted.mdx

Co-authored-by: Copilot <[email protected]>

Author: johnymontana

dgraph/self-hosted.mdx

@@ -480,7 +480,9 @@ curl http://10.0.1.10:8080/health
 kubectl port-forward -n dgraph svc/dgraph-dgraph-alpha 8080:8080 &
 curl -X POST localhost:8080/admin/schema -H "Content-Type: application/json"
 \ -d @schema_backup.json
-
+curl -X POST localhost:8080/admin/schema \
+  -H "Content-Type: application/json" \
+  -d @schema_backup.json
 ```
 
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