sequences-docs: Fix typo

core/sequences/sequences-docs.factor

@@ -821,8 +821,8 @@ HELP: 3append
 
 HELP: subseq
 { $values { "from" "a non-negative integer" } { "to" "a non-negative integer" } { "seq" sequence } { "subseq" "a new sequence" } }
-{ $description "Outputs a new sequence consisting of all elements starting from and including " { $snippet "m" } ", and up to but not including " { $snippet "n" } "." }
-{ $errors "Throws an error if " { $snippet "m" } " or " { $snippet "n" } " is out of bounds." } ;
+{ $description "Outputs a new sequence consisting of all elements starting from and including " { $snippet "from" } ", and up to but not including " { $snippet "to" } "." }
+{ $errors "Throws an error if " { $snippet "from" } " or " { $snippet "to" } " is out of bounds." } ;
 
 HELP: clone-like
 { $values { "seq" sequence } { "exemplar" sequence } { "newseq" "a new sequence" } }