Merge pull request #12 from vedmant/analysis-lKrK4J

Apply fixes from StyleCI

Author: vedmant

src/Shortcode.php

@@ -76,7 +76,7 @@ public function atts(): array
     }
 
     /**
-     * Validate and return attributes
+     * Validate and return attributes.
      *
      * @param array $rules
      * @return array

tests/Unit/ShortcodeTest.php

@@ -48,7 +48,7 @@ public function testValidation()
         try {
             $shortcode->render(null);
             $this->fail('Expected ValidationException not thrown');
-        } catch(ValidationException $e) {
+        } catch (ValidationException $e) {
             $this->assertCount(3, $e->errors());
         }
     }