docs: add more usage examples [skip ci]

Author: aminya

README.md

@@ -305,11 +305,14 @@ test_linux_gcc:
 - [zeromq.js](https://github.com/zeromq/zeromq.js)
 - [json2cpp](https://github.com/lefticus/json2cpp)
 - [lefticus/tools](https://github.com/lefticus/tools)
+- [watcher](https://github.com/e-dant/watcher)
+- [pinpoint-c-agent](https://github.com/pinpoint-apm/pinpoint-c-agent)
 - [dpp](https://github.com/atilaneves/dpp)
 - [DSpellCheck](https://github.com/Predelnik/DSpellCheck)
 - [simdjson-rust](https://github.com/SunDoge/simdjson-rust)
 - [CXXIter](https://github.com/seijikun/CXXIter)
 - [git-tui](https://github.com/ArthurSonzogni/git-tui)
+- [supercell](https://github.com/orex/supercell)
 - [libclang](https://github.com/atilaneves/libclang)
 - [d-tree-sitter](https://github.com/aminya/d-tree-sitter)
 - [atom-community/papm](https://github.com/atom-community/papm)