Add CLI tools usage examples and references to documentation

user/how-to-guides/how-to-update.rst

@@ -87,15 +87,29 @@ Command-line interface
 
 Advanced users may wish to perform updates via the command-line interface. There are two ways to do this:
 
-- If you are using Salt, one can use the following two Salt states.
+1. Use the following two Salt states:
 
-- :ref:`update.qubes-dom0 <user/advanced-topics/salt:\`\`update.qubes-dom0\`\`>`
+  - :ref:`update.qubes-dom0 <user/advanced-topics/salt:\`\`update.qubes-dom0\`\`>`
 
-- :ref:`update.qubes-vm <user/advanced-topics/salt:\`\`update.qubes-vm\`\`>`
+  - :ref:`update.qubes-vm <user/advanced-topics/salt:\`\`update.qubes-vm\`\`>`
 
-- Alternatively, use ``qubes-dom0-update`` to update dom0, and use ``qubes-vm-update`` to update domUs.
+2. Use ``qubes-dom0-update`` to update dom0, and use ``qubes-vm-update`` to update domUs:
 
+  - To check for dom0 updates and apply them, in a dom0 terminal: 
 
+    .. code:: console
+
+       # qubes-dom0-update
+
+    Or add arguments to tweak the default behaviour. Refer to ``qubes-dom0-update --help``, manpage (if you have them installed) or `manpage on github <https://github.com/QubesOS/qubes-core-admin-linux/blob/main/doc/tools/qubes-dom0-update.rst>`__ (make sure to read the appropriate version).
+
+  - To update all updatable templates, in a dom0 terminal:
+
+    .. code:: console
+
+       $ qubes-vm-update -T
+
+    Or use a different set of arguments. Refer to ``qubes-vm-update --help``, manpage (if you have them installed) or `manpage on github <https://github.com/QubesOS/qubes-core-admin-linux/blob/main/doc/tools/qubes-vm-update.rst>`__ (make sure to read the appropriate version).
 
 Using either of these methods has the same effect as updating via the Qubes Update tool.