Fixed three broken links

Author: Jan-Olof Hendig

doc/Language/traps.pod6

@@ -255,7 +255,7 @@ with L<lists|/type/List>, despite the name of the L<.index routine|/type/Str#rou
 
 =head2 Lists become strings, so beware .index()ing
 
-L<List|/type/List> inherits from L<Cool|/type/Cool/>, which provides access to
+L<List|/type/List> inherits from L<Cool|/type/Cool>, which provides access to
 L<.index|/type/Str#routine_index>. Because of the way C<.index>
 L<coerces|/type/List#method_Str> a List into a L<Str|/type/Str>, this can
 sometimes appear to be returning the index of an element in the list, but
@@ -454,7 +454,7 @@ say "cba".comb.sort.join;    # OUTPUT: «abc␤»
 
 =head2 C<.chars> Gets the Number of Graphemes, not Codepoints
 
-In Perl 6, L«C<.chars>|chars>» returns the number of graphemes, or user visible characters.
+In Perl 6, L«C<.chars>|chars» returns the number of graphemes, or user visible characters.
 These graphemes could be made up of a letter plus an accent for example.
 If you need the number of codepoints, you should use L«C<.codes>|codes». If you need
 the number of bytes when encoded as UTF8, you should use C<.encode.bytes> to
@@ -1200,7 +1200,7 @@ $b.sayit;      # nothing
 
 =head2 C<LEAVE> phaser and C<exit>
 
-Using L«C<LEAVE>|/syntax/LEAVE» phaser to perform graceful resource
+Using L«C<LEAVE>|/language/phasers#LEAVE» phaser to perform graceful resource
 termination is a common pattern, but it does not cover the case when
 the program is stopped with L«C<exit>|/routine/exit».