missing keys on benchmark_config.json

frameworks/Scala/http4s/benchmark_config.json

@@ -2,6 +2,8 @@
   "framework": "http4s",
   "tests": [{
     "default": {
+      "orm": "Raw",
+      "database_os": "Linux",
       "setup_file": "setup",
       "json_url": "/json",
       "port": 8080,