add System-level programming languages
System programming language Stability and speed are fast
- [ ] [ATS](http://www.ats-lang.org/)
- [x] [Ada](https://www.adaic.org/)
- [ ] [Arturo](https://github.com/arturo-lang/arturo)
- [ ] [Cairo](https://github.com/starkware-libs/cairo)
- [ ] [Carbon](https://github.com/carbon-language/carbon-lang)
- [ ] [Clarity](https://clarity-lang.org/)
- [ ] [Common Lisp](https://common-lisp.net/)
- [x] [D](https://dlang.org/)
- [ ] [Ebb](https://github.com/gilbo/ebb)
- [ ] [Elixir](https://elixir-lang.org/)
- [ ] [Erlang](https://en.wikipedia.org/wiki/Erlang_(programming_language))
- [ ] [Exo](https://github.com/exo-lang/exo)
- [ ] [Forth](https://forth-standard.org/)
- [ ] [Guile](https://www.gnu.org/software/guile/)
- [ ] [Hare](https://harelang.org/)
- [ ] [Huff](https://github.com/huff-language/huff-rs)
- [ ] [Janet](https://github.com/janet-lang/janet)
- [ ] [Mojo](https://www.modular.com/mojo)
- [ ] [Move](https://github.com/move-language/move)
- [ ] [Nelua](https://github.com/edubart/nelua-lang)
- [ ] [PRQL](https://github.com/PRQL/prql)
- [ ] [Pony](https://github.com/ponylang/ponyc)
- [ ] [Red](https://en.wikipedia.org/wiki/Red_(programming_language))
- [ ] [Roc](https://github.com/roc-lang/roc)
- [ ] [Solidity](https://github.com/ethereum/solidity)
- [ ] [Spiral](https://github.com/mrakgr/The-Spiral-Language)
- [ ] [Squirrel](https://github.com/albertodemichelis/squirrel)
- [ ] [Tcl](https://en.wikipedia.org/wiki/Tcl)
- [ ] [Tensor](https://github.com/gilbo/atl)
- [ ] [Terra](https://github.com/terralang/terra)
- [ ] [VHDL](https://en.wikipedia.org/wiki/VHDL)
- [ ] [Vala](https://vala.dev/)
- [ ] [Verilog](https://en.wikipedia.org/wiki/Verilog)
- [ ] [Vyper](https://github.com/vyperlang/vyper)