Some reflow and corrections

doc/Type/Any.pod6

@@ -316,20 +316,21 @@ Interprets the invocant as a list, and returns the last index of that list.
 
 Defined as:
 
-    method pairup(--> Seq:D) is nodal
+    proto method pairup(|) is nodal
+    multi method pairup(Any:U:)
+    multi method pairup(Any:D:)
 
 Interprets the invocant as a list, and constructs a list of
 L<pairs|/type/Pair> from it, in the same way that assignment to a
 L<Hash|/type/Hash> does.  That is, it takes two consecutive elements and
 constructs a pair from them, unless the item in the key position already is a
 pair (in which case the pair is passed through, and the next list item, if any,
-is considered to be a key again).
+is considered to be a key again). It returns a C<Seq> of C<Pair>s.
 
     say (a => 1, 'b', 'c').pairup.perl;     # OUTPUT: «(:a(1), :b("c")).Seq␤»
 
-=head2 sub item
-
 X<|$ (item contextualizer)>
+=head2 sub item
 
 Defined as:
 
@@ -355,15 +356,16 @@ Defined as:
 
     method Array(--> Array:D) is nodal
 
-Coerces the invocant to L<Array|/type/Array>.
+Coerces the invocant to an L<Array|/type/Array>.
 
 =head2 method List
 
 Defined as:
 
     method List(--> List:D) is nodal
 
-Coerces the invocant to L<List|/type/List>, using the L<list|/routine/list> method.
+Coerces the invocant to L<List|/type/List>, using the L<list|/routine/list>
+method.
 
 =head2 serial
 
@@ -376,7 +378,7 @@ Returns the self-reference to the instance itself:
 
 =begin code
 my $b; # defaults to Any
-say $b.serial.^name; # OUTPUT: Any
+say $b.serial.^name; # OUTPUT: «Any␤»
 =end code
 
 =head2 method Hash
@@ -393,11 +395,11 @@ Coerces the invocant to L<Hash|/type/Hash>.
 Defined as:
 
     proto method hash(|) is nodal
-    multi method hash(Any:U: --> Hash:D)
-    multi method hash(Any:D: --> Hash:D)
+    multi method hash(Any:U:)
+    multi method hash(Any:D:)
 
 When called on a type object, returns an empty L<Hash|/type/Hash>. On instances,
-equivalent to assigning the invocant to a C<%->sigilled variable and
+it is equivalent to assigning the invocant to a C<%->sigilled variable and
 returning that.
 
 Subclasses of C<Any> may choose to return any I<core> type that does the
@@ -435,8 +437,8 @@ Defined as:
 
     method Bag(--> Bag:D) is nodal
 
-Coerces the invocant to L<Bag|/type/Bag>, whereby L<Positionals|/type/Positional>
-are treated as lists of values.
+Coerces the invocant to L<Bag|/type/Bag>, whereby
+L<Positionals|/type/Positional> are treated as lists of values.
 
 =head2 method BagHash