docs: add to deprecated list in changelog
Version 2.0.0 (2020)
+[General]
+
+ * major updates for newer base OS distributions (CentOS 8.1 and OpenSUSE Leap 15.1). OpenHPC 2.0 version is targeted
+ for new or fresh system installs using these distro versions
+ * gcc compiler variant updated -> gnu9
+ * openmpi MPI variant updated -> openmpi4
+ * use of chrony on rhel8
+ * use ip instead of ifconfig in example installation recipe commands (https://github.com/openhpc/ohpc/pull/600)
+
[Deprecated]
* clustershell - now available in EPEL8 and Leap 15.1
+ * ganglia
+ * mpiP
+ * ocr
+ * nagios (nagios-plugins, ndotils,nrpe) - installation recipes now leverage OS provided versions
+
+
+----------------------------------------------------------------------------------------------------------------------
Version 1.3.9 (12 November 2019)
