add zdt to datetime section, add zBench to benchmarks section (#26)

README.md

@@ -189,6 +189,7 @@ TOC is generated by [markdown-toc](https://github.com/jonschlinkert/markdown-toc
 - [karlseguin/zul](https://github.com/karlseguin/zul) : some date/time handling functionality among the other functionality.
 - [clickingbuttons/datetime](https://github.com/clickingbuttons/datetime) : Generic Date, Time, and DateTime library.
 - [leroycep/zig-tzif](https://github.com/leroycep/zig-tzif) : [TZif](https://datatracker.ietf.org/doc/html/rfc8536) parser that also handles POSIX timezone strings
+- [FObersteiner/zdt](https://github.com/FObersteiner/zdt) : Timezoned Datetime in Zig. For learning purposes.
 
 ## Command Line and Argument Parser
 
@@ -497,6 +498,7 @@ TOC is generated by [markdown-toc](https://github.com/jonschlinkert/markdown-toc
 - [lucascompython/zigXrustXc](https://github.com/lucascompython/zigXrustXc) : Performance of Zig vs Rust vs C.
 - [CoalNova/BasicCompare](https://github.com/CoalNova/BasicCompare) : A basic comparitive analysis of C, C++, Rust, and Zig.
 - [ziglang/gotta-go-fast](https://github.com/ziglang/gotta-go-fast) : Performance Tracking for Zig.
+- [hendriknielaender/zBench](https://github.com/hendriknielaender/zBench) : Simple benchmarking library.
 
 ## Graphics Library