Refactor readme, dashboard and images [skip ci]

Author: draincoder

README.md

@@ -102,8 +102,6 @@ asgi-monitor uvicorn-log-config --path log-config.json --level info --json-forma
 uvicorn main:app --log-config log-config.json
 ```
 
-
-
 #### Tracing
 
 You can also add query tracing and your logic using `opentelemetry`.

docs/images/dashboard.png

@@ -211,7 +211,7 @@
               },
               {
                 "color": "red",
-                "value": 80
+                "value": 1
               }
             ]
           }