docs:fix

Author: xiangnanscu

Diff for: README.md

@@ -165,8 +165,8 @@ end)
 
 -- 11. Check if events are executing properly
 router:get("/add", function(ctx)
-  cnt = cnt + 1
-  return cnt
+  router:emit('add')
+  return ctx.cnt
 end)
 
 router:get("/events", function(ctx)

Diff for: app.lua

@@ -119,8 +119,8 @@ end)
 
 -- 11. Check if events are executing properly
 router:get("/add", function(ctx)
-  cnt = cnt + 1
-  return cnt
+  router:emit('add')
+  return ctx.cnt
 end)
 
 router:get("/events", function(ctx)

Diff for: test.py

@@ -188,7 +188,7 @@ def run_tests():
     test_endpoint("/func", expected_response="function called")
 
     # 11. Test events
-    test_endpoint("/add", expected_response=1)
+    test_endpoint("/add", expected_response=0)
     test_endpoint("/events", expected_response=1)
 
     # 12. Test ctx.response.body