consistent indentation; minor grammar improvement

docs/Perl6/Perl5/Differences.pod

@@ -395,14 +395,14 @@ You can still say C<sort(@array)> if you prefer the non-OO idiom.
 Since both builtin functions and operators are multi subs and methods,
 changing their behaviour for particular types is a simple as adding the
 appropriate multi subs and methods. If you want these to be globally
-available, well, you can't, because everything lexically scoped in Perl 6.
+available, well, you can't, because everything is lexically scoped in Perl 6.
 You can, however, export multi definitions to any code that wishes to import it.
 
     class TurkishStr {
-	multi sub uc(TurkishStr $str) is export { ... }
+	    multi sub uc(TurkishStr $str) is export { ... }
 
-	# overload the string concatenation:
-	multi sub infix:<~>(TurkishStr $us, TurkishStr $them) is export { ... }
+	    # overload the string concatenation:
+	    multi sub infix:<~>(TurkishStr $us, TurkishStr $them) is export { ... }
     }
 
 If you want to offer a type cast to a particular type, just provide a method