Fix intra-document Link. Closes #52

Author: moritz

lib/Language/variables.pod

@@ -174,7 +174,7 @@ Although they may not be changed at runtime, the user is allowed to
     constant $?TABSTOP = 4; # this causes leading tabs in a heredoc or in a POD
                             # block's virtual margin to be counted as 4 spaces.
 
-For a list of these special variables see L<Compile-time variables>.
+For a list of these special variables see L<#Compile-time variables>.
 
 =head2 The C<.> Twigil