docs: add example request in readme

README.md

@@ -54,4 +54,16 @@ In that case either delete your browser cache or open the OpenCPU API Explorer i
 Open [http://localhost/ocpu/](http://localhost:80/ocpu/) in your browser to access the OpenCPU API Explorer interface.
 
 In the interface you can run any functions and access included data of the fearbase package by making requests in `../library/fearbase/`. 
-Check the [OpenCPU API docs](https://www.opencpu.org/api.html#api-methods) for information on how to use the OpenCPU API Explorer
+Check the [OpenCPU API docs](https://www.opencpu.org/api.html#api-methods) for information on how to use the OpenCPU API Explorer
+
+#### Example Request
+
+To run `jsonSummary` on the `randomData` enter:
+* Method: `POST`
+* Endpoint: `../library/fearbase/R/jsonSummary`
+* Param Name: `d`
+* Param Value: `randomData`
+
+To see the result of the analysis, pick one of the links in the response and run a get request on it:
+* Method: `GET`
+* Endpoint: `/ocpu/tmp/<hash>/stdout`