Documentation improvements

docs/index.md

@@ -254,11 +254,12 @@ $ curl -s "http://localhost:8080/health" | jq .
 }
 ```
 
-* ```/api```: ```GET``` or ```PUT``` a configuration
+* ```/api```: ```GET``` configuration for all providers
 
 ```sh
 $ curl -s "http://localhost:8082/api" | jq .
 {
+  "file": {
     "Frontends": {
       "frontend-traefik": {
         "Routes": {
@@ -321,16 +322,41 @@ $ curl -s "http://localhost:8082/api" | jq .
         }
       }
     }
+  },
+  "marathon": {
+    "Frontends": {
+      "frontend-marathon": {
+        "Routes": {
+          "route-host-marathon": {
+            "Value": "marathon.docker.localhost",
+            "Rule": "Host"
+          }
+        },
+        "Backend": "backend-marathon"
+      },
+    },
+    "Backends": {
+      "backend-marathon": {
+        "Servers": {
+          "server-marathon-1": {
+            "Weight": 0,
+            "Url": "http://172.17.0.8:802"
+          },
+        },
+      },
+    },
+  },
 }
 
 ```
 
-* ```/api/backends```: ```GET``` backends
-* ```/api/backends/{backend}```: ```GET``` a backend
-* ```/api/backends/{backend}/servers```: ```GET``` servers in a backend
-* ```/api/backends/{backend}/servers/{server}```: ```GET``` a server in a backend
-* ```/api/frontends```: ```GET``` frontends
-* ```/api/frontends/{frontend}```: ```GET``` a frontend
+* ```/api/{provider}```: ```GET``` or ```PUT``` provider
+* ```/api/{provider}/backends```: ```GET``` backends
+* ```/api/{provider}/backends/{backend}```: ```GET``` a backend
+* ```/api/{provider}/backends/{backend}/servers```: ```GET``` servers in a backend
+* ```/api/{provider}/backends/{backend}/servers/{server}```: ```GET``` a server in a backend
+* ```/api/{provider}/frontends```: ```GET``` frontends
+* ```/api/{provider}/frontends/{frontend}```: ```GET``` a frontend
 
 
 ## <a id="docker"></a> Docker backend