chore(AIP-193): fix broken link to anchor (#1468)

Author: KatrinaHoffert

aip/general/0193.md

@@ -391,7 +391,7 @@ programmatically.
 error messages. While `LocalizedMessage` **may** use a locale specified
 in the request, a service **may** provide a `LocalizedMessage` even without
 a user-specified locale, typically to provide a better error message in
-[situations where `Status.message` cannot be changed](updating-statusmessage).
+[situations where `Status.message` cannot be changed](#updating-statusmessage).
 Where the locale is not specified by the user, it **should** be `en-US`
 (US English).