Change all fuzzing links to point to OSS-Fuzz site

Author: LynnKirby

docs/HACKING.md

@@ -127,7 +127,5 @@ guidance in [CONTRIBUTING.md](CONTRIBUTING.md) on how to report a security vulne
 
 For more details on building fuzzers and integrating with OSS-Fuzz, visit:
 
-- https://google.github.io/oss-fuzz/getting-started/new-project-guide/
-- https://llvm.org/docs/LibFuzzer.html
-- https://github.com/google/fuzzing/blob/master/tutorial/libFuzzerTutorial.md
-- https://chromium.googlesource.com/chromium/src/testing/libfuzzer/+/HEAD/efficient_fuzzing.md
+- [Setting up a new project - OSS-Fuzz](https://google.github.io/oss-fuzz/getting-started/new-project-guide/)
+- [Tutorials - OSS-Fuzz](https://google.github.io/oss-fuzz/reference/useful-links/#tutorials)