show how to interpolate with unicode

doc/Language/quoting.pod6

@@ -75,9 +75,10 @@ L<say> B<">My favorite color is B<$color>!B<">
     My favorite color is blue!
 
 The C<qq> form -- usually written using double quotes -- allows for
-interpolation of variables, i.e., variables can be written within the string
-so that the content of the variable is inserted into the string. It is also
-possible to escape variables within a C<qq>-quoted string:
+interpolation of backslash sequences and variables, i.e., variables can be
+written within the string so that the content of the variable is inserted into
+the string. It is also possible to escape variables within a C<qq>-quoted
+string:
 
 =for code :allow<B>
 say B<">The B<\>$color variable contains the value '$color'B<">;
@@ -126,8 +127,24 @@ X<|&>
 Postcircumfix operators and therefore L<subscripts|/language/subscripts> are
 interpolated as well.
 
-   my %h = :1st; say "abc%h<st>ghi";
-   OUTPUT«abc1ghi␤»
+    my %h = :1st; say "abc%h<st>ghi";
+    OUTPUT«abc1ghi␤»
+
+To enter unicode sequences use C<\x> or C<\x[]> with the hex-code of the
+character or a list of characters.
+
+    my $s = "I \x[2665] Perl 6!";
+    dd $s;
+    OUTPUT«Str $s = "I ♥ Perl 6!"␤»
+    my $s = "I really \x[2661,2665,2764,1f495] Perl 6!";
+    dd $s;
+    OUTPUT«Str $s = "I really ♡♥❤💕 Perl 6!"␤»
+
+You can also use unicode names with C<\c[]>.
+
+    my $s = "Camelia \c[BROKEN HEART] my \c[HEAVY BLACK HEART]!";
+    dd $s;
+    OUTPUT«Str $s = "Str $s = "Camelia 💔 my ❤!"␤»
 
 =head2 Word quoting: qw
 X<|qw word quote>X«|< > word quote»