README.md: fix OS X High Sierra alternative package link

Was a goof when Xcode 11 support was added.

Fixes: c4833c5  ("build,.travis.yml: add support for Xcode 11")
Signed-off-by: Alexandru Ardelean <[email protected]>

README.md

@@ -26,7 +26,7 @@ As with many open source packages, we use [GitHub](https://github.com/analogdevi
 |:-----------------------:|:---------------------:|:-------:|:-------------------:|:--------------:|
 | Windows                 | [![Windows Status](https://ci.appveyor.com/api/projects/status/github/analogdevicesinc/libiio?svg=true)](https://ci.appveyor.com/project/analogdevicesinc/libiio/branch/master) | Windows 10<br />Windows 8.1<br />Windows 8<br />Windows 7 | [![Latest Windows installer](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/win_box.png)](https://ci.appveyor.com/api/projects/analogdevicesinc/libiio/artifacts/libiio-setup.exe?branch=master) | [![Latest Windows zip](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/win_box.png)](https://ci.appveyor.com/api/projects/analogdevicesinc/libiio/artifacts/libiio.zip?branch=master) |
 | OS X                    |  [![OSX Status](https://api.travis-ci.org/analogdevicesinc/libiio.svg?branch=master&label=osx&passingTex=foo)](https://travis-ci.org/analogdevicesinc/libiio) |  OS X Mojave <br />(v 10.14) | [![OS-X package 10.14](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/osx_box.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-darwin-10.14.4.pkg) | [![OS-X tarball 10.14](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/osx_box.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-darwin-10.14.4.tar.gz) |
-|                         |                     |  OS X High Sierra <br />(v 10.13) | [![OS-X package 10.13](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/osx_box.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-darwin-10.13.6.pkg) | [![OS-X tarball 10.13](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/osx_box.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-darwin-10.14.4.tar.gz) |
+|                         |                     |  OS X High Sierra <br />(v 10.13) | [![OS-X package 10.13](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/osx_box.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-darwin-10.13.6.pkg) | [![OS-X tarball 10.13](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/osx_box.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-darwin-10.13.6.tar.gz) |
 |                    |                     | macOS Sierra<br />(v 10.12) | [![OS-X package 10.12](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/osx_box.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-darwin-10.12.6.pkg) | [![OS-X tarball 10.12](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/osx_box.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-darwin-10.12.6.tar.gz) |
 | Linux     | [![Linux Status](https://api.travis-ci.org/analogdevicesinc/libiio.svg?branch=master&label=linux)](https://travis-ci.org/analogdevicesinc/libiio) | Ubuntu Bionic Beaver<br />(v 18.04)<sup>1</sup>  | [![Debian](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/deb.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-ubuntu-18.04-amd64.deb) | [![RPM File](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/rpm.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-ubuntu-18.04-amd64.rpm) [![tar.gz](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/linux_box.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-ubuntu-18.04-amd64.tar.gz) |
 |  |  | Ubuntu Xenial Xerus<br />(v 16.04)<sup>1</sup> | [![Debian](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/deb.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-ubuntu-16.04-amd64.deb) | [![RPM File](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/rpm.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-ubuntu-16.04-amd64.rpm)  [![tar.gz file](https://raw.githubusercontent.com/wiki/analogdevicesinc/libiio/img/linux_box.png)](http://swdownloads.analog.com/cse/travis_builds/master_latest_libiio-ubuntu-16.04-amd64.tar.gz) |