add complete twigils to index

Author: gfldex

doc/Language/variables.pod6

@@ -173,6 +173,7 @@ only depends on the C<$>.
 =end table
 
 =head2 The C<*> Twigil
+X<|$*>
 
 Dynamic variables are looked up through the caller, not through the outer
 scope. For example:
@@ -232,6 +233,7 @@ boolean context before using it for anything else:
 
 
 =head2 The C<!> Twigil
+X<|$!>
 
 Attributes are variables that exist per instance of a class. They may be
 directly accessed from within the class via C<!>:
@@ -255,6 +257,7 @@ you though. For more details on objects, classes and their attributes see
 L<object orientation|/language/objects>.
 
 =head2 The C<?> Twigil
+X<|$?>
 
 Compile-time variables may be addressed via the C<?> twigil. They are known
 to the compiler and may not be modified after being compiled in. A popular
@@ -273,6 +276,7 @@ For a list of these special variables see
 L<compile-time variables|/language/variables#Compile-time_variables>.
 
 =head2 The C<.> Twigil
+X<|$.>
 
 The C<.> twigil isn't really for variables at all. In fact, something along
 the lines of
@@ -315,6 +319,7 @@ match variable. For more information about the match variable see L<$/> and
 L<type Match|/type/Match>.
 
 =head2 The C<^> Twigil
+X<|$^>
 
 The C<^> twigil declares a formal positional parameter to blocks or
 subroutines.  Variables of the form C<$^variable> are a type of placeholder
@@ -355,6 +360,7 @@ upper-case letter. This is disallowed in favor of being to able to catch
 some Perl 5-isms.
 
 =head2 The C<:> Twigil
+X<|$:>
 
 The C<:> twigil declares a formal named parameter to a block or subroutine.
 Variables declared using this form are a type of placeholder variable too.
@@ -370,6 +376,7 @@ Will print "C<-1>".
 See L<^> for more details about placeholder variables.
 
 =head2 The C<=> Twigil
+X<|$=>
 
 The C<=> twigil is used to access Pod variables. Every Pod block in the
 current file can be accessed via a Pod object, such as C<$=data>,
@@ -391,6 +398,7 @@ Note that all those C<$=someBlockName> support the C<Positional> and the
 C<Associative> roles.
 
 =head2 The C<~> Twigil
+X<|$~>
 
 Note: Slangs are L<NYI|/language/glossary#NYI> in Rakudo.