late breaking preview info

Author: bryanmacfarlane

docs/preview/latebreaking.md

@@ -0,0 +1,21 @@
+# VSTS Agent Preview - Late breaking instructions
+
+## Ubuntu 14.04
+
+Before running the agent, you need to:
+
+```bash
+sudo apt-get install -y libunwind8 libcurl3 libicu52
+```
+
+## Ubuntu 16.04
+
+Before running the agent, you need to:
+
+```bash
+sudo apt-get install -y libunwind8 libcurl3 libicu52
+```
+
+## RedHat and CentOS
+
+Not yet supported or tested in this preview