Update version and README

Author: Jacob Hageman

Guide-GroundSystem.txt

@@ -1,4 +1,4 @@
-cFS Ground System Version 2.1.2
+cFS Ground System Version 2.1.3
 
 cFS Ground System Info:
 

README.md

@@ -8,6 +8,11 @@ See Guide-GroundSystem.txt for more information.
 
 ## Version Notes
 
+- 2.1.3: DEVELOPMENT
+  - Minor updates to work with python 3
+  - No longer compatible with python 2.7
+  - Note issue #50 is to update the related documentation 
+  - See https://github.com/nasa/cFS-GroundSystem/pull/47
 - 2.1.2: DEVELOPMENT
   - Minor updates (see https://github.com/nasa/cFS-GroundSystem/pull/39)
 - 2.1.1: DEVELOPMENT