Adds section on list contexts, refs #1225

Author: JJ

doc/Language/contexts.pod6

@@ -193,6 +193,22 @@ force this context on an object.
 say ? 0i;    # OUTPUT: «False␤»
 say ! :true; # OUTPUT: «False␤»
 
+=head1 List X<|list context>
+
+There are actually several different
+L<list contexts|/language/list#List_contexts>, which are better explained in
+that page. In general, the list contextualizer is the comma C<,>
+
+    say (3,).^name; # OUTPUT: «List␤»
+
+and the method called in that case is also C<.list>
+
+=for code
+Any.list.^name;   # OUTPUT: «List␤»
+say 3.list.^name; # OUTPUT: «List␤»
+say (^3).list;    # OUTPUT: «(0 1 2)␤»
+
+
 =end pod
 
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