Quick start guide broken

Hello,

I followed the quick start guide:

https://github.com/google/tcmalloc/blob/master/docs/quickstart.md

but there is issues. First http_archive in the WORKSPACE file seem to be deprecated. I found a workaround using:
```
load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
```
but then I face:
```
ERROR: error loading package '@@com_google_tcmalloc//tcmalloc': Unable to find package for @@rules_fuzzing//fuzzing:cc_defs.bzl: The repository '@@rules_fuzzing' could not be resolved: Repository '@@rules_fuzzing' is not defined.
```

The quick start wasn't updated since 3 years. Is it still valid?