Merge pull request #5273 from hashicorp/dani/nvidia-affinity

docs: Update affinity stanza in device

website/source/docs/devices/nvidia.html.md

@@ -231,6 +231,7 @@ job "gpu-test" {
           affinity {
             attribute = "${device.model}"
             value     = "Tesla K80"
+            weight    = 50
           }
         }
       }