nits

Author: jfcherng

UPGRADING/UPGRADING_v6.md

@@ -19,8 +19,8 @@ there is no breaking change for you so you do not have to do anything.
   - Constant `RendererConstant::RENDERER_TYPES`
   - Constant `AbstractRenderer::IS_TEXT_RENDERER`
 
-- Now a `Renderer` has `render()` API, but a `Differ` does not.
-  But if you use those classes by yourself, it should be written like below.
+- Now a `Renderer` has `render()` method, but a `Differ` does not.
+  If you use those classes by yourself, it should be written like below.
 
   ```php
   use Jfcherng\Diff\Differ;

src/Renderer/AbstractRenderer.php

@@ -80,7 +80,10 @@ public function setOptions(array $options): self
     {
         $newOptions = $options + static::$defaultOptions;
 
-        $this->updateLanguage($this->options['language'] ?? '', $newOptions['language']);
+        $this->updateLanguage(
+            $this->options['language'] ?? '',
+            $newOptions['language']
+        );
 
         $this->options = $newOptions;