update comments in the Redis component (#3127)

Author: deminy

src/Redis.php

@@ -84,7 +84,7 @@ private function shouldUseSameConnection(string $methodName): bool
     }
 
     /**
-     * Get a connection from coroutine context, or from redis connectio pool.
+     * Get a connection from coroutine context, or from redis connection pool.
      * @param mixed $hasContextConnection
      */
     private function getConnection($hasContextConnection): RedisConnection

src/RedisFactory.php

@@ -31,7 +31,7 @@ public function __construct(ConfigInterface $config)
     }
 
     /**
-     * @return \Redis|RedisProxy
+     * @return RedisProxy
      */
     public function get(string $poolName)
     {