modify readme

README.md

@@ -1,2 +1,25 @@
+
 # erlbte
 Behavior Tree for erlang
+
+## examples
+![exp1](https://raw.githubusercontent.com/zouv/erlbte/master/examples/json/test3.png)
+
+## testing
+###### examples/bte_ai_test.erl
+```javascript
+test(FileName) ->
+  case file:read_file("json/" ++ FileName) of
+    {ok, EBinary} ->
+      {ok, BteStatus} = bte_ai:init(EBinary),
+      io:format("s1:~p~n", [BteStatus#r_bte_status.status]),	
+      BteStatus1 = bte_ai:tick(BteStatus),
+      io:format("s2:~p~n", [BteStatus1#r_bte_status.status]),
+      ok;
+    _ ->
+	  skip
+  end.
+```
+* how to test
+    * bte_ai_test:test("test2.json").
+

examples/bte_ai_test.erl

@@ -15,9 +15,9 @@ test(FileName) ->
     case file:read_file("json/" ++ FileName) of
 		{ok, EBinary} ->
 			{ok, BteStatus} = bte_ai:init(EBinary),
-			io:format("test___1 ~p~n", [BteStatus#r_bte_status.status]),
+			io:format("s1:~p~n", [BteStatus#r_bte_status.status]),
 			BteStatus1 = bte_ai:tick(BteStatus),
-			io:format("test___2 ~p~n", [BteStatus1#r_bte_status.status]),
+			io:format("s2:~p~n", [BteStatus#r_bte_status.status]),
 			% BteStatus2 = bte_ai:tick(BteStatus1),  % testing bte stack
 			% BteStatus3 = bte_ai:tick(BteStatus2),
 			% BteStatus4 = bte_ai:tick(BteStatus3),