doc: fix broken sentence in URL.parse

PR-URL: #59164
Refs: https://developer.mozilla.org/en-US/docs/Web/API/URL/parse_static#return_value
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Chemi Atlow <[email protected]>
Reviewed-By: Moshe Atlow <[email protected]>
Reviewed-By: Zeyu "Alex" Yang <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>

Author: SuperchupuDev

doc/api/url.md

@@ -720,7 +720,7 @@ added: v22.1.0
 
 Parses a string as a URL. If `base` is provided, it will be used as the base
 URL for the purpose of resolving non-absolute `input` URLs. Returns `null`
-if `input` is not a valid.
+if the parameters can't be resolved to a valid URL.
 
 ### Class: `URLPattern`