doc: correct typescript stdin support

PR-URL: #54036
Fixes: #54035
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

Author: marco-ippolito

Diff for: doc/api/typescript.md

@@ -123,10 +123,10 @@ import { fn, FnParams } from './fn.ts';
 
 ### Non-file forms of input
 
-Type stripping can be enabled for `--eval` and STDIN input. The module system
+Type stripping can be enabled for `--eval`. The module system
 will be determined by `--input-type`, as it is for JavaScript.
 
-TypeScript syntax is unsupported in the REPL, `--print`, `--check`, and
+TypeScript syntax is unsupported in the REPL, STDIN input, `--print`, `--check`, and
 `inspect`.
 
 ### Source maps