Add ross-weir/logex (#127)

Author: ross-weir

README.md

@@ -207,6 +207,7 @@ TOC is generated by [markdown-toc](https://github.com/jonschlinkert/markdown-toc
 - [g41797/syslog](https://github.com/g41797/syslog) : [syslog](https://en.wikipedia.org/wiki/Syslog) RFC5424 client library.
 - [chrischtel/nexlog](https://github.com/chrischtel/nexlog) : A modern, feature-rich logging library for Zig with thread-safety, file rotation, and colorized output.
 - [sam701/slog](https://github.com/sam701/slog) : a configurable, structured logging package for Zig with support for hierarchical loggers.
+- [ross-weir/logex](https://github.com/ross-weir/logex) : A library that enriches `std.log` logging with additional functionality and features.
 
 ## Audio Processing