Merge pull request #1668 from redis/DOC-5311-rdi-helm-filename-fix

DOC-5311 fixed filename in Helm install examples

Author: andy-stark-redis

content/integrate/redis-data-integration/installation/install-k8s.md

@@ -133,7 +133,7 @@ To pull images from a private image registry, you must provide the image pull se
     `rdi-values.yaml` file:
 
     ```bash
-    helm show values rdi-<tag>.tar.gz > rdi-values.yaml
+    helm show values rdi-<tag>.tgz > rdi-values.yaml
     ```
 
 1.  Open the `rdi-values.yaml` file you just created, change or add the appropriate
@@ -144,7 +144,7 @@ To pull images from a private image registry, you must provide the image pull se
 1.  Run the `helm upgrade --install` command:
 
     ```bash
-    helm upgrade --install rdi rdi-<tag>.tar.gz -f rdi-values.yaml -n rdi --create-namespace
+    helm upgrade --install rdi rdi-<tag>.tgz -f rdi-values.yaml -n rdi --create-namespace
     ```
 
     {{< note >}}The above command will install RDI in a namespace called