Update mm_preset.json

mm_preset.json

@@ -34,7 +34,7 @@
     "default_sampler": "dpmpp_2m_sde_gpu",
     "default_scheduler": "karras",
     "default_performance": "Hyper-SD",
-    "default_prompt": "upside-down landscape reflected in lake, no human, a small country house stands, a red roadster in front of the house, a colorful cosmos field in the foreground",
+    "default_prompt": "upside-down landscape reflected in lake, no humans, a small country house stands, a red roadster in front of the house, a colorful cosmos field in the foreground",
     "default_prompt_negative": "",
     "default_styles": [
         "Fooocus Negative",