update support matrix and change log for 6.1.3

Author: Helene

docs/CHANGELOG.md

@@ -1,3 +1,14 @@
+# Version 6.1.3 (05/21/2021)
+
+Added support for the 'includeDiskData' command line argument.
+- using the 'includeDiskData' option allows to query and fetch data from the archived (on disk data) for better precision. 
+
+Expanded test module with more unit tests
+
+Tested with Grafana 7.5.1 version
+
+
+
 # Version 6.1.2 (03/20/2021)
 
 Removed the "switching to the multi-threaded zimon port automatically" feature

docs/SUPPORT_MATRIX.md

@@ -1,5 +1,12 @@
 The following matrix gives a quick overview of the supported software for the IBM Spectrum Scale bridge for Grafana packages by version number:
 
+# Version 6.1.3 (05/21/2021)
+- Python 3.6
+- CherryPy 18.6.0
+- IBM Spectrum Scale system must run 5.1.0 and above or
+- IBM Spectrum Scale Container Native Storage Access(CNSA) devices having minReleaseLevel 5.1.0.1
+- Grafana 7.5.0 and above
+
 # Version 6.1.2 (03/20/2021)
 - Python 3.6
 - CherryPy 18.6.0