fix: 优化一些单词描述

src/Application.php

@@ -200,7 +200,7 @@ class Application implements ClientInterface
             throw new TimeOutExcetpion($request, $exception);
         } catch (GuzzleException $exception) {
             if ($this->logger) {
-                $this->logger->error("sdk etrror, bad client!");
+                $this->logger->error("sdk error, bad client!");
             }
             if (!($request instanceof SdkRequest)) {
                 throw new ApplicationException($exception->getMessage(), null, [], $exception);
@@ -240,7 +240,7 @@ class Application implements ClientInterface
             if ($this->logger) {
                 $this->logger->error("sdk error, paypal service fail", $context);
             }
-            throw new SdkException("SDK Upstram Failed", $request, $response, []);
+            throw new SdkException("SDK Upstream Failed", $request, $response, []);
         }
 
         if (in_array($response->getStatusCode(), [404, 405])) {

src/Option.php

@@ -3,12 +3,13 @@ declare(strict_types=1);
 
 namespace Jiwei\EasyHttpSdk;
 
+use Closure;
 use Jiwei\EasyHttpSdk\Policy\DefaultErrorHandlingPolicy;
 use Jiwei\EasyHttpSdk\Policy\HandlingPolicyInterface;
 
 abstract class Option
 {
-    const ENDPONIT_HOSTS = [
+    const ENDPOINT_HOSTS = [
         'local' => '',
         'development' => '',
         'production' => ''
@@ -28,9 +29,9 @@ abstract class Option
     private $debug = false;
 
     /**
-     * @return \Closure
+     * @return Closure
      */
-    abstract public function authorization(): \Closure;
+    abstract public function authorization(): Closure;
 
     /**
      * 错误处理策略
@@ -105,7 +106,7 @@ abstract class Option
     public function getBaseUrl(): string
     {
 
-        return static::ENDPONIT_HOSTS[$this->getStage()] ?? "";
+        return static::ENDPOINT_HOSTS[$this->getStage()] ?? "";
     }
 
     /**