Minor rephrasing and reflow

Author: JJ

doc/Language/classtut.pod6

@@ -292,7 +292,7 @@ to do this.
 =head1 Static fields?
 
 Perl 6 has no B<static> keyword. Nevertheless, any class may declare anything
-that a module can, so making a scoped variable sounds like good idea.
+that a module can, so making a scoped variable sounds like a good idea.
 
 =begin code
 class Singleton {

doc/Language/variables.pod6

@@ -580,8 +580,8 @@ variables.
     say [$a, $b, $c].perl;
     # OUTPUT: «["a", "b", Int]␤»
 
-To destructure a list into a single value, create a list literal with one element
-by using C<($var,)>. When used with a variable declarator, providing
+To destructure a list into a single value, create a list literal with one
+element by using C<($var,)>. When used with a variable declarator, providing
 parentheses around a single variable is sufficient.
 
     sub f { 1,2,3 };