README.md: expose portable builds for windows

closes #2766

README.md

@@ -8,8 +8,10 @@ qTox [![Build Status](https://travis-ci.org/tux3/qTox.svg)](https://travis-ci.or
 ----
 
 * **Windows**:
-  - [**64 bit download**](https://build.tox.chat/view/qtox/job/qTox_pkg_windows_x86-64_stable_release/lastSuccessfulBuild/artifact/setup-qtox.exe)
-  - [**32 bit download**](https://build.tox.chat/view/qtox/job/qTox_pkg_windows_x86_stable_release/lastSuccessfulBuild/artifact/setup-qtox.exe)
+  - [**64 bit installer**](https://build.tox.chat/view/qtox/job/qTox_pkg_windows_x86-64_stable_release/lastSuccessfulBuild/artifact/setup-qtox.exe)
+  - [**32 bit installer**](https://build.tox.chat/view/qtox/job/qTox_pkg_windows_x86_stable_release/lastSuccessfulBuild/artifact/setup-qtox.exe)
+  - [**64 bit portable**](https://build.tox.chat/job/qTox_build_windows_x86-64_release/lastSuccessfulBuild/artifact/qTox_build_windows_x86-64_release.zip)
+  - [**32 bit portable**](https://build.tox.chat/job/qTox_build_windows_x86_release/lastSuccessfulBuild/artifact/qTox_build_windows_x86_release.zip)
 * **Linux**:
   - [**64 bit download**](https://build.tox.chat/view/Clients/job/qTox_build_linux_x86-64_release/lastSuccessfulBuild/artifact/qTox_build_linux_x86-64_release.tar.xz)
   - [**32 bit download**](https://build.tox.chat/view/Clients/job/qTox_build_linux_x86_release/lastSuccessfulBuild/artifact/qTox_build_linux_x86_release.tar.xz)
@@ -22,7 +24,7 @@ qTox [![Build Status](https://travis-ci.org/tux3/qTox.svg)](https://travis-ci.or
   - [**Port**](/INSTALL.md#freebsd-easy)
 <br/>
 
-Nighly builds do not update automatically at this stage of development, so make sure you get back to this site and regularly download the latest version of qTox.
+Builds other than installer/packages don't receive updates automatically, so make sure you get back to this site and regularly download the latest version of qTox.
 
 
 #### Screenshots