Finalize translation fixes for 13.4.md

Author: DeepAnchor

en/13.4.md

@@ -224,7 +224,7 @@ Below are a number of functions the parser uses for reading the configuration fi
 
 ## Application guide
 
-The following function is an example of the application, to access remote URL address Json data to achieve the following:
+The following function is an example of an application I used to fetch json data from a remote url address:
 
 	func GetJson() {
 		resp, err := http.Get(beego.AppConfig.String("url"))
@@ -240,13 +240,13 @@ The following function is an example of the application, to access remote URL ad
 		}
 	}
 
-Function calls the framework of the log function `beego.Critical` function is used to being given, called `beego.AppConfig.String(" url ")` is used to obtain the configuration information in the file, configuration files are as follows(app.conf ):
+Beego's `Critical()` logging function is called to report any errors which may occur in the `GetJson()` function. `beego.AppConfig.String("url")` is used to obtain information from a configuration file (typically `app.conf`), which might look something like the following:
 
 	appname = hs
 	url ="http://www.api.com/api.html"
 
 ## Links
 
 - [Directory](preface.md)
-- Previous section: [Design controllers](13.3.md)
-- Next section: [Add, delete and update blogs](13.5.md)
+- Previous section: [Designing controllers](13.3.md)
+- Next section: [Adding, deleting and updating blogs](13.5.md)