fix: readme update

README.md

@@ -16,14 +16,30 @@ Zint, first delete `/usr/local/bin/zint`, then install the new version.
 
 ## Role Variables
 
-See example playbook.
+If these variables are not supplied, the role will just pull the latest version.
+
+```
+zint_version: 2.13.0
+zint_source: "https://sourceforge.net/projects/zint/files/zint/{{ zint_version }}/zint-{{ zint_version }}-src.tar.gz/download"
+zint_source_checksum: 'sha256:a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8'
+```
 
 ## Dependencies
 
 None
 
 ## Example Playbook
 
+```yaml
+    # Just download latest
+    - hosts: servers
+    - roles:
+        - name: Install Zint from source
+          role: acromedia.zint
+      tags:
+        - zint
+
+    # ...or download a specific version
     - hosts: servers
     - roles:
         - name: Install Zint from source
@@ -33,12 +49,13 @@ None
           zint_source_checksum: 'sha256:bd286d863bc60d65a805ec3e46329c5273a13719724803b0ac02e5b5804c596a'
       tags:
         - zint
+```
 
 ## License
 
 GPLv3
 
 ## Author Information
 
-Acro Media Inc.
-https://www.acromedia.com/
+Acro Commerce Inc.
+https://www.acrocommerce.com/