Update README.md

The indentation of the code snippet before "Can omit parentheses for" was wrong which made that whole part look like a code snippet. This fixes the styling again.

Author: SilaSpet

README.md

@@ -853,7 +853,7 @@ Translations of the guide are available in the following languages:
 
           # body omitted
         end
-      ```
+        ```
 
     Can omit parentheses for