Merge pull request #1179 from rucron/master

Add stretto cache

README.md

@@ -732,6 +732,7 @@ See also [About Rust’s Machine Learning Community](https://medium.com/@autumn_
 ### Caching
 
 * [aisk/rust-memcache](https://github.com/aisk/rust-memcache) — Memcached client library [![build badge](https://api.travis-ci.org/aisk/rust-memcache.svg?branch=master)](https://travis-ci.org/aisk/rust-memcache)
+* [al8n/stretto](https://github.com/al8n/stretto) - A high performance thread-safe memory-bound Rust cache [![build badge](https://github.com/al8n/stretto/actions/workflows/ci.yml/badge.svg)](https://github.com/al8n/stretto/actions/workflows/ci.yml)
 * [jaemk/cached](https://github.com/jaemk/cached) — Simple function caching/memoization
 * [jaysonsantos/bmemcached-rs](https://github.com/jaysonsantos/bmemcached-rs) [[bmemcached](https://crates.io/crates/bmemcached)] — Memcached library written in pure rust [![build badge](https://api.travis-ci.org/jaysonsantos/bmemcached-rs.svg?branch=master)](https://travis-ci.org/jaysonsantos/bmemcached-rs)
 * [mozilla/sccache](https://github.com/mozilla/sccache/) - Shared Compilation Cache, great for Rust compilation [![build badge](https://api.travis-ci.org/mozilla/sccache.svg?branch=master)](https://travis-ci.org/mozilla/sccache)