Add rules endpoint to documentation (#302)

* Add rules endpoint to documentation

Author: Christoffer-Cortes

src/main/java/com/ericsson/ei/controller/RuleController.java

@@ -11,7 +11,7 @@
 
 
 /**
- * This class is used for anything rules related. It's currently used to test rules on eiffel events and to fetch the active rules file content. Test rules must be enabled in Eiffel Intelligence for the /rule-check endpoints to work.
+ * This class is used for anything rules related. It's currently used to test rules on Eiffel events and to fetch the active rules file content. Test rules must be enabled in Eiffel Intelligence for the /rule-check endpoints to work.
  * (Generated with springmvc-raml-parser v.2.0.4)
  * 
  */
@@ -22,7 +22,7 @@ public interface RuleController {
 
 
     /**
-     * This method returns the active rules file content.
+     * This method returns the active rules content.
      * 
      */
     @RequestMapping(value = "", method = RequestMethod.GET)

wiki/markdown/running-rules-on-objects.md

@@ -1,11 +1,21 @@
 # Running Rules On Objects
 
-|Method|Endpoint             |
-|------|---------------------|
-|POST |/rules/rule-check|
-|POST | /rules/rule-check/aggregation|
-|GET | /rules/rule-check/testRulePageEnabled |
-
+|Method|Endpoint                               |
+|------|---------------------------------------|
+|GET   | /rules                                |
+|POST  | /rules/rule-check                     |
+|POST  | /rules/rule-check/aggregation         |
+|GET   | /rules/rule-check/testRulePageEnabled |
+
+## Checking the active rules in your backend instance
+
+You can fetch the rules content from the backend to see what rules Eiffel Intelligence is currently using.
+This can give you an idea on how to write your own rules or could be saved and used
+in the /rules/rule-check endpoints to test the current rules against your events.
+
+    curl -X GET http://<host>:8090/rules
+    
+## Testing rules and events in Eiffel Intelligence
 
 Before deploying a new instance of Eiffel Intelligence it is good to test the
 desired rules that they give the desired outcome. Therefore it is possible to