Add some usage info

readme.md

@@ -112,6 +112,14 @@ Special thanks to:
 
 [genMC]: https://plv.mpi-sws.org/genmc/
 
+### Usage
+
+mimalloc is used in various large scale low-latency services and programs, for example:
+
+<a href="https://www.bing.com"><img align="left"  height="50" src="https://upload.wikimedia.org/wikipedia/commons/e/e9/Bing_logo.svg"></a>
+<a href="https://azure.microsoft.com/"><img align="left" height="50" src="https://upload.wikimedia.org/wikipedia/commons/a/a8/Microsoft_Azure_Logo.svg"></a>
+<a href="https://deathstrandingpc.505games.com"><img height="100" src="doc/ds-logo.jpg" style="border-radius=1ex;vertical-align:center"></a>
+
 # Building
 
 ## Windows