docs(basic-router):fix some places of basic-router (#2012)

docs/source/en/basics/middleware.md

@@ -118,7 +118,7 @@ Middlewares which are defined at Application (`app.config.appMiddleware`) and Fr
 
 The middleware configured in the above ways is global, and it will process every request.
 
-If you do want to take only for single route, you could just instantiate and mount it at `app/router.js`:
+If you do want to take effect only for single route, you could just instantiate and mount it at `app/router.js`:
 
 ```js
 module.exports = app => {

docs/source/en/basics/router.md

@@ -1,9 +1,9 @@
 title: Router
 ---
 
-Router is mainly used to describe the relationship between the request URL and the Controller that processes the request eventually. All routing rules are unified in the `app/router.js` file by the framework.
+Router is mainly used to describe the corresponding relationship between the request URL and the Controller that processes the request eventually. All routing rules are unified in the `app/router.js` file by the framework.
 
-By unifying routing rules, routing logics are free from scatter that may cause unkown conflicts and it will be easier for us to check global routing rules.
+By unifying routing rules, we can avoid the routing logics scattered in many places which may cause many unknown conflicts, and we can more easily check global routing rules.
 
 ## How to Define Router
 
@@ -55,8 +55,8 @@ The complete definition of router includes 5 major parts:
   * router.redirect - redirects the request URL. For example, the most common case is to redirect the request accessing the root directory to the homepage.
 - router-name defines a alias for the route, and URL can be generated by helper method `pathFor` and `urlFor` provided by Helper. (Optional)
 - path-match - URL path of the route.
-- middleware1 - multiple Middleware can be configured in Router. (Optional)
-- controller - specific the controller of this router, this param can be tow types:
+- middleware1 - multiple Middlewares can be configured in Router. (Optional)
+- controller - set the route to map to the specific controller, and the controller can be written in two types:
   * `app.controller.user.fetch` - directly point to a controller
   * `'user.fetch'` - simplified as a string,
 
@@ -83,7 +83,7 @@ module.exports = app => {
 
 ### RESTful style URL definition
 
-We provide `app.resources('router-name', 'path-match', 'controller-name')` to generate [CRUD](https://en.wikipedia.org/wiki/Create,_read,_update_and_delete) structures on a path for convenience if you prefer the RESTful style URL definition.
+We provide `app.resources('routerName', 'pathMatch', 'controller')` to generate [CRUD](https://en.wikipedia.org/wiki/Create,_read,_update_and_delete) structures on a path for convenience if you prefer the RESTful style URL definition.
 
 ```js
 // app/router.js
@@ -94,7 +94,7 @@ module.exports = app => {
 };
 ```
 
-The codes above produces a bunch of CRUD path structures for Controller `app/controller/posts.js`, and the only thing you should do next is to implement related functions in `posts.js`.
+The codes above produce a bunch of CRUD path structures for Controller `app/controller/posts.js`, and the only thing you should do next is to implement related functions in `posts.js`.
 
 Method | Path            | Route Name     | Controller.Action
 -------|-----------------|----------------|-----------------------------
@@ -165,7 +165,7 @@ exports.info = async ctx => {
 
 #### acquiring complex parameters
 
-Regular expressions, as well, can be used in routing rules to aquire parameters more flexibly:
+Regular expressions, as well, can be used in routing rules to acquire parameters more flexibly:
 
 ```js
 // app/router.js
@@ -204,7 +204,7 @@ exports.post = async ctx => {
 
 > If you perform a POST request directly, an **error** will occur: 'secret is missing'. This error message comes from [koa-csrf/index.js#L69](https://github.com/koajs/csrf/blob/2.5.0/index.js#L69).
 
-> **Reason**: the framework verifies the CSFR value specially for form POST requests, so please submit the CSRF key as well when you submit a form. For more detail refer to [Keep Away from CSRF Threat](https://eggjs.org/zh-cn/core/security.html#安全威胁csrf的防范)
+> **Reason**: the framework verifies the CSFR value specially for form POST requests, so please submit the CSRF key as well when you submit a form. Refer to [Keep Away from CSRF Threat](https://eggjs.org/zh-cn/core/security.html#安全威胁csrf的防范) for more detail.
 
 > **Note**: the verification is performed because the framework builds in a security plugin [egg-security](https://github.com/eggjs/egg-security) that provides some default security practices and this plugin is enabled by default. In case you want to disable some security protections, just set the enable attribute to false.
 
@@ -319,7 +319,7 @@ module.exports = app => {
 
 As described above, we do not recommend that you scatter routing logics all around, or it will bring trouble in trouble shooting.
 
-If it is a must for some reasons, you can split routing rules like below:
+If there is a need for some reasons, you can split routing rules like below:
 
 ```js
 // app/router.js