docs: add note to @setRuntimeSafety
docs: add note to @setRuntimeSafety

raulgrell/zig,andrewrk/zig,zig-lang/zig,andrewrk/zig,raulgrell/zig,raulgrell/zig,raulgrell/zig,zig-lang/zig,raulgrell/zig,zig-lang/zig