Add rustix

Fixes: #135

data/crates.json

@@ -388,6 +388,9 @@
                         {
                             "name": "*nix (OSs)",
                             "recommendations": [{
+                                "name": "rustix",
+                                "notes": "Efficient and safe POSIX / *nix / Winsock syscall-like APIs. It uses idiomatic Rust types: refs, slices, Results instead of raw pointers, safe wrappers around raw file descriptors, bitflags instead of bare integer flags, and several other conveniences."
+                            }, {
                                 "name": "nix",
                                 "notes": "Bindings to the various *nix system functions. (Unix, Linux, MacOS, etc.)"
                             }]