Fixes ocp-power-automation#220 Updated Docu

Fixes ocp-power-automation#220 Updated Docu

docs/var.tfvars-doc.md

@@ -180,7 +180,7 @@ release_image_override     = ""
 ```
 
 These variables specify the ansible playbooks that are used for OpenShift install and post-install customizations. If the URL ends with a file name extension .zip, then it is assumed that it points to a HTTP/HTTPS server and curl/unzip will be used to extract the package. URLs without ending with .zip are recognized as GitHub repositories and git clone && git checkout are used.
-`Only .zip is supported file format on web servers. The all files must be placed in folders starting with ocp4-playbooks, or ocp4-helpernode! It is allowed to extend the directory name with additional informations: e.g. ocp4-helpernode-<master/version number) Exception is the help_repo, which is expected to be a tar.gz file format (default when downloading from the original source without manipulation afterwards!`
+`Only .zip is supported file format on web servers. The all files must be placed in folders starting with ocp4-playbooks, or ocp4-helpernode! It is allowed to extend the directory name with additional informations: e.g. ocp4-helpernode-<master/version number)`
 Valid options: Requires a URL pointing to the packages/GitHub project.
 ```
 helpernode_repo            = "https://<HTTP SERVER>/ocp4-ansible-modules/ocp4-helpernode-master.zip"
@@ -192,25 +192,29 @@ install_playbook_repo      = "https://<HTTP SERVER>/ocp4-ansible-modules/ocp4-pl
 OR
 install_playbook_repo      = "https://github.com/ocp-power-automation/ocp4-playbooks"
 install_playbook_tag       = "02a598faa332aa2c3d53e8edd0e840440ff74bd5"
-helm_repo                  = "https://<HTTP SERVER>/python-modules/helm-latest-linux-ppc64le.tar.gz"
 ```
 
 If you want to provide the ansible playbooks by your local HTTP server, follow these steps:
 ```
 Use your web browser and visit https://github.com/RedHatOfficial/ocp4-helpernode
-On the main page of the master brach, click on the green "Code" button with a download symbol in front of it
+On the main page select the release brach and click on the green "Code" button with a download symbol in front of it
 Click on "Download ZIP"
 Upload the file to your local HTTP server and place it in the appropriate directory
 
 Use your web browser and visit https://github.com/ocp-power-automation/ocp4-playbooks
-On the main page of the master brach, click on the green "Code" button with a download symbol in front of it
+On the main page select the release brach and click on the green "Code" button with a download symbol in front of it
 Click on "Download ZIP"
-Upload the file to your local HTTP server and place it in the appropriate directory
+Upload the file to your local HTTP server and place it in the appropriate directory, like the example below
 
 ls -la /var/www/html/repos/
 total 13452
--rw-r--r--. 1 root root 13624204 Jul  8 13:43 ocp4-helpernode-master.tgz
--rw-r--r--. 1 root root   145165 Jul  8 13:44 ocp4-playbooks-master.tgz
+-rw-r--r--. 1 root root 13624204 Jul  8 13:43 ocp4-helpernode.zip
+-rw-r--r--. 1 root root   145165 Jul  8 13:44 ocp4-playbooks.zip
+```
+
+This variable can be used to define a different source for the helm package, like a local web server. By default, the help package will be downloaded from the official internet source.
+```
+helm_repo                  = "https://<HTTP SERVER>/python-modules/helm-latest-linux-ppc64le.tar.gz"
 ```
 
 These variables can be used when debugging ansible playbooks