Update README.md

Author: changsongl

README.md

@@ -59,7 +59,7 @@ The default configuration file is `config/config.yaml.example`.
 
 - ##### Http
 
-````http request
+````
 // Push job
 POST 127.0.0.1:8000/topic/mytopic/job
 body: {"id": "myid1","delay":10, "ttr":4, "body":"body"}
@@ -71,7 +71,7 @@ body: {"id": "myid1","delay":10, "ttr":4, "body":"body"}
 }
 ````
 
-````http request
+````
 // Pop job (timeout: seconds)
 GET 127.0.0.1:8000/topic/mytopic/job?timeout=5
 
@@ -89,7 +89,7 @@ GET 127.0.0.1:8000/topic/mytopic/job?timeout=5
 }
 ````
 
-````http request
+````
 // Delete job
 DELETE 127.0.0.1:8000/topic/mytopic/job/myid1
 
@@ -100,7 +100,7 @@ DELETE 127.0.0.1:8000/topic/mytopic/job/myid1
 }
 ````
 
-````http request
+````
 // Delete job
 PUT 127.0.0.1:8000/topic/mytopic/job/myid1