doc: fix broken links in deprecations.md

PR-URL: #35109
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

Author: Trott

doc/api/deprecations.md

@@ -2693,8 +2693,8 @@ The [`crypto.Certificate()` constructor][] is deprecated. Use
 [`response.connection`]: http.html#http_response_connection
 [`response.end()`]: http.html#http_response_end_data_encoding_callback
 [`response.finished`]: http.html#http_response_finished
-[`response.writableFinished`]: #http_response_writablefinished
-[`response.writableEnded`]: #http_response_writableended
+[`response.writableFinished`]: http.html#http_response_writablefinished
+[`response.writableEnded`]: http.html#http_response_writableended
 [`script.createCachedData()`]: vm.html#vm_script_createcacheddata
 [`setInterval()`]: timers.html#timers_setinterval_callback_delay_args
 [`setTimeout()`]: timers.html#timers_settimeout_callback_delay_args