Fix typos

Author: joelwurtz

docs/plugins.md

@@ -1,8 +1,8 @@
 # Plugin System
 
-The plugin system allow to manipulate requests and responses inside a `HttpClient`.
+The plugin system allow to manipulate requests and responses inside an `HttpClient`.
 
-By using the `Http\Client\Plugin\PluginClient` you can inject a `HttpClient` or a `HttpAsyncClient`, and an array
+By using the `Http\Client\Plugin\PluginClient` you can inject an `HttpClient` or an `HttpAsyncClient`, and an array
 of plugins implementing the `Http\Client\Plugin\Plugin` interface.
 
 Each plugin can modify the `RequestInterface` sent or the `ResponseInterface` received. It can also change the behavior of a call
@@ -52,7 +52,7 @@ $response = $pluginClient->sendRequest($request);
 $promise  = $pluginClient->sendAsyncRequest($request);
 ```
 
-Read the [tutorial](tutorial.md) to know more about `HttpClient` and `HttpAsyncClient`
+GO to the [tutorial](tutorial.md) to read more about using `HttpClient` and `HttpAsyncClient`
 
 ## Available plugins
 
@@ -102,10 +102,10 @@ Response <--- PluginClient <--- RetryPlugin <--- RedirectPlugin <--- HttpClient
 In order to have correct behavior over the global process, you need to understand well each plugin used,
 and manage a correct order when passing the array to the `PluginClient`
 
-`RetryPlugin` will be best at then for example if you want to optimize the retry process, but also it can be good 
-to have it in the first plugin, if one is inconsistent and may need a retry.
+`RetryPlugin` will be best at the end to optimize the retry process, but it can also be good 
+to have it as the first plugin, if one in the chain is inconsistent and may need a retry.
 
-Our recommendation, which apply to most of the use case, is to organize your plugins with the following rule:
+Our recommendation, which apply to most of use cases, is to organize your plugins with following rules:
 
  1. Plugins that modify the request should be at the beginning (like the `AuthenticationPlugin` or the `CookiePlugin`)
  2. Plugins which intervene in the workflow should be in the "middle" (like the `RetryPlugin` or the `RedirectPlugin`)
@@ -180,7 +180,7 @@ public function handleRequest(RequestInterface $request, callable $next, callabl
 In this example the condition is not superfluous, you need to have some way to not calling the $first callable each time or
 you will end up with a infinite execution loop.
 
-The `$next` and `$first` callable will return a `Promise`, you can manipulate the `ResponseInterface` or the `Exception`
+The `$next` and `$first` callable will return a `Promise`. You can manipulate the `ResponseInterface` or the `Exception`
 by using the `then` method of the promise.
 
 ```
@@ -199,4 +199,4 @@ public function handleRequest(RequestInterface $request, callable $next, callabl
 ```
 
 Anyway it is always a good practice to read existing implementation inside the [plugin repository](https://github.com/php-http/plugins) to better understand the whole
-process;
+process.