Fixed 2 little typos

etc/emqx_auth_http.conf

@@ -45,7 +45,7 @@ auth.http.auth_req.params = clientid=%c,username=%u,password=%P
 ## Value: post | get
 #auth.http.super_req.method = post
 
-## It only works when method=pos
+## It only works when method=post
 ## Value: json | x-www-form-urlencoded
 #auth.http.super_req.content_type = x-www-form-urlencoded
 
@@ -112,7 +112,7 @@ auth.http.acl_req.params = access=%A,username=%u,clientid=%c,ipaddr=%a,topic=%t,
 ## Default is same with the timeout option
 ## auth.http.request.connect_timeout = 5
 
-## Re-send http reuqest times
+## Re-send http request times
 ##
 ## Value: integer
 ##