Fix spelling mistakes

src/Plugin/Field/FieldFormatter/JsonFormatter.php

@@ -42,7 +42,7 @@ class JsonFormatter extends FormatterBase {
     $form['attach_library'] = [
       '#type' => 'checkbox',
       '#title' => $this->t('Attach library'),
-      '#description' => $this->t('By default the JSONView JS library will be loaded to provide a resonable experience viewing the JSON data. Disabling this option will prevent the JSONView JS library from being loaded.'),
+      '#description' => $this->t('By default the JSONView JS library will be loaded to provide a reasonable experience viewing the JSON data. Disabling this option will prevent the JSONView JS library from being loaded.'),
       '#default_value' => $this->getSetting('attach_library'),
     ];