docs: add Galaxy role name clarification and historical stats

As of December 2025, this role is available on Galaxy as
mrlesmithjr.manage_lvm (underscore). The previous hyphenated
variant (manage-lvm) was consolidated.

Added historical download statistics:
- manage_lvm: 697,492 downloads
- manage-lvm: 494,517 downloads
- Combined: 1,192,009 downloads

This role is used by OpenStack Kayobe for LVM management.

README.md

@@ -4,6 +4,34 @@ Ansible role to manage LVM Groups/Logical Volumes.
 
 > NOTE: Can be used to create, extend or resize LVM Groups and volumes.
 
+## ⚠️ Important: Ansible Galaxy Role Name
+
+**As of December 2025**, this role is available on Ansible Galaxy as:
+
+```yaml
+- src: mrlesmithjr.manage_lvm  # Note: underscore, not hyphen
+```
+
+The previous role names (`mrlesmithjr.manage-lvm` and `mrlesmithjr.manage_lvm`) were
+consolidated into a single role. If you were using `mrlesmithjr.manage-lvm`, please
+update your `requirements.yml` to use `mrlesmithjr.manage_lvm`.
+
+**Note:** This role is used by [OpenStack Kayobe](https://docs.openstack.org/kayobe/latest/)
+for LVM management. The `manage_lvm` name was preserved to maintain compatibility.
+
+### Historical Download Statistics
+
+Prior to consolidation, this role had accumulated significant usage:
+
+| Role Name | Downloads (as of Dec 2025) |
+|-----------|---------------------------|
+| `mrlesmithjr.manage_lvm` | 697,492 |
+| `mrlesmithjr.manage-lvm` | 494,517 |
+| **Combined Total** | **1,192,009** |
+
+Due to Ansible Galaxy limitations, download counts reset when roles are re-imported.
+The historical data above represents the actual community usage of this role.
+
 ## Requirements
 
 Devices/disks to be members of the LVM setup **must be** identified prior to