add conc
@@ -1201,6 +1201,7 @@ _Tools for managing and working with Goroutines._
- [async-job](https://github.com/lab210-dev/async-job) - AsyncJob is an asynchronous queue job manager with light code, clear and speed.
- [breaker](https://github.com/kamilsk/breaker) - Flexible mechanism to make execution flow interruptible.
- [channelify](https://github.com/ddelizia/channelify) - Transform your function to return channels for easy and powerful parallel processing.
+- [conc](https://github.com/sourcegraph/conc) - `conc` is your toolbelt for structured concurrency in go, making common tasks easier and safer.
- [concurrency-limiter](https://github.com/vivek-ng/concurrency-limiter) - Concurrency limiter with support for timeouts , dynamic priority and context cancellation of goroutines.
- [conexec](https://github.com/ITcathyh/conexec) - A concurrent toolkit to help execute funcs concurrently in an efficient and safe way. It supports specifying the overall timeout to avoid blocking and uses goroutine pool to improve efficiency.
- [cyclicbarrier](https://github.com/marusama/cyclicbarrier) - CyclicBarrier for golang.
