Adding README.md to clearly state that these charts belong to the 1.x branch of VOLTHA

Change-Id: Ifc3961a38be0eed4ac16990355b4b29b92d9b14c
diff --git a/voltha/Chart.yaml b/voltha/Chart.yaml
index 1237b00..b0246cc 100644
--- a/voltha/Chart.yaml
+++ b/voltha/Chart.yaml
@@ -16,5 +16,5 @@
 description: A Helm chart for Voltha based on K8S resources in Voltha project
 icon: https://guide.opencord.org/logos/cord.svg
 
-version: 1.0.8
+version: 1.0.9
 appVersion: 1.7.0
diff --git a/voltha/README.md b/voltha/README.md
new file mode 100644
index 0000000..a4a15e2
--- /dev/null
+++ b/voltha/README.md
@@ -0,0 +1,5 @@
+# Helm Charts for VOLTHA 1.x
+
+These charts refer to the 1.x version of VOLTHA.
+
+For the latest charts referring to the 2.x version of VOLTHA please visit [voltha-helm-charts](https://github.com/opencord/voltha-helm-charts).