Minor grammar and reflow

Author: JJ

doc/Language/typesystem.pod6

@@ -138,17 +138,17 @@ compiler will check at the end of the current scope if the type is defined.
 
 =head2 C<class>
 
-The C<class> declarator creates a compile time construct that is compiled
-into a type object. The latter is a simple Perl 6 object and provides methods
-to construct instances by executing initializers and sub methods to fill all
-attributes declared in a class and any parent class with values. Initializers
+The C<class> declarator creates a compile time construct that is compiled into a
+type object. The latter is a simple Perl 6 object and provides methods to
+construct instances by executing initializers and sub methods to fill all
+attributes declared in a class, and any parent class, with values. Initializers
 can be provided with the declaration of attributes or in constructors. It's the
 responsibility of the L<Metamodel::ClassHOW|/type/Metamodel::ClassHOW> to know
 how to run them. This is the only magic part of building objects in Perl 6. The
-default parent type is C<Any> which in turn inherits from C<Mu>. The latter
+default parent type is C<Any>, which in turn inherits from C<Mu>. The latter
 provides the default constructor C<.new> which is named like this by convention.
-Aside from this, C<.new> does not carry any special meaning nor is treated in a
-special way.
+Aside from this, C<.new> does not carry any special meaning nor is treated in
+any special way.
 
 For more information how to use classes see the L<Classes and objects|/language/classtut>
 tutorial.
@@ -520,7 +520,7 @@ there may be performance implications, hence the pragmas.
     say $s.mark
     # OUTPUT: «answer␤»
 
-There are little limitations of what can be done inside the class fragment. One of
+There are few limitations of what can be done inside the class fragment. One of
 them is the redeclaration of a method or sub into a multi. Using added
 attributes is not yet implemented. Please note that adding a multi candidate
 that differs only in its named parameters will add that candidate behind the