Rename arg in examples to better indicate its purpose

Author: zoffixznet

doc/Type/IO/Handle.pod6

@@ -213,14 +213,14 @@ Removes a L«C<lock>|/routine/lock» from the filehandle.
 
 Defined as:
 
-    multi sub words(IO::Handle:D $fh = $*ARGFILES, $count = Inf, :$close --> Seq:D)
-    multi method words(IO::Handle:D: $count = Inf, :$close --> Seq:D)
+    multi sub words(IO::Handle:D $fh = $*ARGFILES, $limit = Inf, :$close --> Seq:D)
+    multi method words(IO::Handle:D: $limit = Inf, :$close --> Seq:D)
 
 Similar to L«C<Str.words>|/type/Str#routine_words», separates the handle's
 stream on contiguous chunks of whitespace (as defined
 by Unicode) and returns a L<Seq> of the resultant "words." Takes an optional
-C<$count> argument that can be a non-negative L<Int>, C<Inf>, or L<Whatever>
-(which is interpreted to mean C<Inf>), to indicate only up-to C<$count> words
+C<$limit> argument that can be a non-negative L<Int>, C<Inf>, or L<Whatever>
+(which is interpreted to mean C<Inf>), to indicate only up-to C<$limit> words
 must be returned. If L<Bool> C<:$close> named argument is set to C<True>,
 will automatically close the handle when the returned L<Seq> is exhausted.
 Subroutine form defaults to