README.md in fluent-plugin-calyptia-monitoring-0.1.0.rc vs README.md in fluent-plugin-calyptia-monitoring-0.1.0.rc2

@@ -1,11 +1,9 @@
 # fluent-plugin-calyptia-monitoring
 
-[Fluentd](https://fluentd.org/) input plugin to do something.
+[Fluentd](https://fluentd.org/) input plugin to ingest metrics into Calyptia Cloud.
 
-TODO: write description for you plugin.
-
 ## Installation
 
 ### RubyGems
 
 ```
@@ -24,18 +22,65 @@
 
 ```
 $ bundle
 ```
 
-## Configuration
+## Plugin helpers
 
-You can generate configuration template:
+* [timer](https://docs.fluentd.org/v/1.0/plugin-helper-overview/api-plugin-helper-timer)
+* [storage](https://docs.fluentd.org/v/1.0/plugin-helper-overview/api-plugin-helper-storage)
 
-```
-$ fluent-plugin-config-format input calyptia-monitoring
-```
+* See also: [Input Plugin Overview](https://docs.fluentd.org/v/1.0/input#overview)
 
-You can copy and paste generated documents here.
+## Fluent::Plugin::CalyptiaMonitoringInput
+
+
+### \<cloud_monitoring\> section (required) (single)
+
+### Configuration
+
+|parameter|type|description|default|
+|---|---|---|---|
+|endpoint|string (optional)|The endpoint for Monitoring API HTTP request, e.g. http://example.com/api|`TBD`|
+|api_key|string (required)|The API KEY for Monitoring API HTTP request||
+|rate|time (optional)|Emit monitoring values interval. (minimum interval is 30 seconds.)|`30`|
+|pending_metrics_size|size (optional)|Setup pending metrics capacity size|`100`|
+
+### Example
+
+This plugin works well with [cmetrics Fluentd extension for metrics plugin](https://github.com/calyptia/fluent-plugin-metrics-cmetrics).
+
+And enabling RPC and configDump endpoint is requireed if sending Fluentd configuration:
+
+```aconf
+<system>
+# If users want to use multi workers feature which corresponds to logical number of CPUs, please comment out this line.
+#  workers "#{require 'etc'; Etc.nprocessors}"
+  enable_input_metrics true
+  <metrics>
+    @type cmetrics
+  </metrics>
+  rpc_endpoint 127.0.0.1:24444
+  enable_get_dump true
+</system>
+# And other configurations....
+
+## Fill YOUR_API_KEY with your Calyptia API KEY
+<source>
+  @type calyptia_monitoring
+  @id input_caplyptia_moniroting
+  <cloud_monitoring>
+    # endpoint http://development-environment-or-production.fqdn:5000
+    api_key YOUR_API_KEY
+    rate 30
+    pending_metrics_size 100 # Specify capacity for pending metrics
+  </cloud_monitoring>
+  <storage>
+    @type local
+    path /path/to/agent/accessible/directories/agent_states
+  </storage>
+</source>
+```
 
 ## Copyright
 
 * Copyright(c) 2021- Hiroshi Hatake
 * License