Update jolokia plugin readme

plugins/inputs/jolokia/README.md

@@ -1,16 +1,28 @@
 # Telegraf plugin: Jolokia
 
-#### Plugin arguments:
+#### Configuration
-- **context** string: Context root used of jolokia url
+
-- **servers** []Server: List of servers
+```toml
-  + **name** string: Server's logical name
+[[inputs.jolokia]]
-  + **host** string: Server's ip address or hostname
+  ## This is the context root used to compose the jolokia url
-  + **port** string: Server's listening port
+  context = "/jolokia/read"
-- **metrics** []Metric
+
-  + **name** string: Name of the measure
+  ## List of servers exposing jolokia read service
-  + **jmx** string: Jmx path that identifies mbeans attributes
+  [[inputs.jolokia.servers]]
-  + **pass** []string: Attributes to retain when collecting values
+    name = "stable"
-  + **drop** []string: Attributes to drop when collecting values
+    host = "192.168.103.2"
+    port = "8180"
+    # username = "myuser"
+    # password = "mypassword"
+
+  ## List of metrics collected on above servers
+  ## Each metric consists in a name, a jmx path and either
+  ## a pass or drop slice attribute.
+  ## This collect all heap memory usage metrics.
+  [[inputs.jolokia.metrics]]
+    name = "heap_memory_usage"
+    jmx  = "/java.lang:type=Memory/HeapMemoryUsage"
+```
 
 #### Description
 
@@ -21,31 +33,3 @@ See: https://jolokia.org/
 
 # Measurements:
 Jolokia plugin produces one measure for each metric configured, adding Server's `name`, `host` and `port` as tags.
-
-Given a configuration like:
-
-```ini
-[jolokia]
-
-[[jolokia.servers]]
-  name = "as-service-1"
-  host = "127.0.0.1"
-  port = "8080"
-
-[[jolokia.servers]]
-  name = "as-service-2"
-  host = "127.0.0.1"
-  port = "8180"
-
-[[jolokia.metrics]]
-  name = "heap_memory_usage"
-  jmx  = "/java.lang:type=Memory/HeapMemoryUsage"
-  pass = ["used", "max"]
-```
-
-The collected metrics will be:
-
-```
-jolokia_heap_memory_usage name=as-service-1,host=127.0.0.1,port=8080 used=xxx,max=yyy
-jolokia_heap_memory_usage name=as-service-2,host=127.0.0.1,port=8180 used=vvv,max=zzz
-```