use bullet points for structure

README.rst

@@ -221,14 +221,26 @@ the ``--age`` option or the **SOPS_AGE_RECIPIENTS** environment variable:
 
 When decrypting a file with the corresponding identity, SOPS will look for a
 text file name ``keys.txt`` located in a ``sops`` subdirectory of your user
-configuration directory. On Linux, this would be ``$XDG_CONFIG_HOME/sops/age/keys.txt``.
-If ``$XDG_CONFIG_HOME`` is not set ``$HOME/.config/sops/age/keys.txt`` is used instead.
-On macOS, this would be ``$HOME/Library/Application Support/sops/age/keys.txt``. On
-Windows, this would be ``%AppData%\sops\age\keys.txt``. You can specify the location
-of this file manually by setting the environment variable **SOPS_AGE_KEY_FILE**.
-Alternatively, you can provide the key(s) directly by setting the **SOPS_AGE_KEY**
-environment variable. Alternatively, you can provide a command to output the age keys
-by setting the **SOPS_AGE_KEY_CMD** environment variable.
+configuration directory. 
+
+- **Linux**
+
+  - Looks for `keys.txt` in `$XDG_CONFIG_HOME/sops/age/keys.txt`;
+  - Falls back to `$HOME/.config/sops/age/keys.txt` if `$XDG_CONFIG_HOME` isn’t set.
+
+- **macOS**
+
+  - Looks for `keys.txt` in `$HOME/Library/Application Support/sops/age/keys.txt`.
+
+- **Windows**
+
+  - Looks for `keys.txt` in `%AppData%\sops\age\keys.txt`.
+
+You can override the default lookup by:
+
+- setting the environment variable **SOPS_AGE_KEY_FILE**;
+- setting the **SOPS_AGE_KEY** environment variable;
+- providing a command to output the age keys by setting the **SOPS_AGE_KEY_CMD** environment variable..
 
 The contents of this key file should be a list of age X25519 identities, one
 per line. Lines beginning with ``#`` are considered comments and ignored. Each