Add Vegetation Management Module notes and links to README.md for the…

… VegetationManagement branch.

README.md

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-# CTSM
+# CTSM enabled for the FATES Vegetation Management Module
+<!--- This could be confusing since this points to the master repo: -->
+<!--- [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.3739617.svg)](https://doi.org/10.5281/zenodo.3739617) -->
 
-[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.3739617.svg)](https://doi.org/10.5281/zenodo.3739617)
+## Vegetation Management Module
+
+This version of CTSM includes namelist items necessary to enable the use of the Vegetation Management Module with CLM-FATES.  The Vegetation Management Module (VM) is an extension for FATES that allows the simulation of a range of realistic vegetation management activities. Consult the [VM documentation](https://joshuarady.github.io/VegetationManagement/) for further information on installing and using the Vegetation Management Module.
 
 ## Overview and resources