Add atmosphere_image_overrides options

This is for ability to provide override values for atmosphere_images
diff --git a/.ansible-lint b/.ansible-lint
index 65e8cbd..7600462 100644
--- a/.ansible-lint
+++ b/.ansible-lint
@@ -5,7 +5,7 @@
   - charts
   - molecule
   - playbooks
-  - roles/defaults/defaults/main.ym
+  - roles/defaults/vars/main.yml
   - roles/kube_prometheus_stack/files/jsonnet
 
 warn_list: