Update docs/README.md

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: ardatan

docs/README.md

@@ -1135,6 +1135,12 @@ all:
   dedupe_enabled: true
   max_connections_per_host: 100
   pool_idle_timeout_seconds: 50
+subgraphs:
+  products:
+    timeout:
+      duration: 10s
+  reviews:
+    max_connections_per_host: 50
 
 ```