Document Seriatim role support and privileges

README.md

@@ -7,6 +7,10 @@ and `arm64` hosts and is independently usable outside the D&D pipeline role.
 The role manages its build dependencies and a root-owned source checkout,
 builds a native static executable, validates it, and safely installs it.
 
+Role source and issue tracking are hosted in the
+[ansible-role-seriatim repository](https://gitea.maximumdirect.net/eric/ansible-role-seriatim)
+and its [issue tracker](https://gitea.maximumdirect.net/eric/ansible-role-seriatim/issues).
+
 ## Requirements
 
 Ansible Core 2.18 or newer is required. Install the pinned collection
@@ -16,6 +20,11 @@ dependency before using or validating the role:
 ansible-galaxy collection install -r collections/requirements.yml
 ```
 
+The consuming play must set `become: true` or provide equivalent root
+privileges. The role manages system packages, classic snaps, root-owned source
+and state directories, and the installed executable under `/usr/local` by
+default.
+
 ## Variables
 
 | Variable | Default | Description |