In the "Protecting global variables" section of the Nim Manual, there is an
"internal" Link called "lock levels", just over "Protecting general locations",
which points to
"[https://nim-lang.org/docs/manual.html#lock-levels"](https://nim-lang.org/docs/manual.html#lock-levels").
This location does not seem to exist. I think it should point to
"[https://nim-lang.org/docs/manual.html#guards-and-locks-lock-levels](https://nim-lang.org/docs/manual.html#guards-and-locks-lock-levels)"
instead.