Reorg, updates and troubleshooting guide

- Expanded hw install
- Change fabric switch bootstrap to DHCP/HTTP based ONL install
- Start of operations and troubleshooting guide
- Various grammar/spelling fixes, dictionary expansion

Change-Id: I9b30d63a97e4443ea3871ee880646e161de8969a
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+..
+   SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
+Operations
+==========
+
+Edge shutdown procedure
+-----------------------
+
+To gracefully shutdown an Aether Edge Pod, follow the following steps:
+
+1. Shutdown the fabric switches using ``shutdown -h now``
+
+2. Shutdown the compute servers using ``shutdown -h now``
+
+3. Shutdown the management server using ``shutdown -h now``
+
+4. The management switch and eNB aren't capable of a graceful shutdown, so no
+   steps need to be taken for that hardware.
+
+5. Remove power from the pod.
+
+.. note::
+
+   The shutdown steps can be automated with an :doc:`ad-hoc ansible command
+   <ansible:user_guide/intro_adhoc>` and you have an ansible inventory of all
+   the systems::
+
+      ansible -i inventory/sitename.ini -b -m shutdown -a "delay=60" all
+
+   The ``delay=60`` arg is to allow hosts behind the management server to be
+   reached before the management server shuts down.
+
+Edge power up procedure
+-----------------------
+
+1. Restore power to the pod equipment.  The fabric and management switches will
+   power on automatically.
+
+2. Turn on the management server using the front panel power button
+
+3. Turn on the compute servers using the front panel power buttons