added hex-rays IDA reference

index.html

@@ -429,6 +429,7 @@ Peazip is a free multi-platforms archiver by Giorgio Tani with [support for Zsta
     <li><a href="https://wiki.freebsd.org/pkgng"   ><img src="images/freebsd.png" /></a> [PKG](https://svnweb.freebsd.org/ports?view=revision&revision=512256) </li>
     <li><a href="https://conda.io/"                ><img src="images/conda.png"   /></a> [Conda](https://www.anaconda.com/how-we-made-conda-faster-4-7/) </li>
     <li><a href="https://gcc.gnu.org/"             ><img src="images/gcc.png"     /></a> [GCC](https://www.phoronix.com/scan.php?page=news_item&px=GCC-10-Gets-Zstd-LTO-Byte-Comp) </li>
+    <li><a href="https://docs.hex-rays.com/"       ><img src="images/hexrays.png" /></a> [Hex-rays IDA](https://docs.hex-rays.com/release-notes/9_1)</a></li>
     <li><a href="https://code.facebook.com/projects/527543867323997/folly/"><img src="images/folly.png"/></a> [folly](https://github.com/facebook/folly/blob/master/folly/compression/Compression.h#L83) </li>
     <li><a href="https://cmake.org/"               ><img src="images/cmake.png"   /></a> [cmake](https://cmake.org/cmake/help/v3.15/release/3.15.html) </li>
     <li><a href="https://docs.taskcluster.net/"    ><img src="images/taskc2.png"  /></a> [TaskCluster](https://github.com/taskcluster/taskcluster-worker/pull/114)</li>