Big refactor, many minor fixes (#441)

* Big refactor, many minor fixes

* Link fixes, icon edits

* Index and ToC fixes

* update icons in theme lib and add to device guides index

* WIP - refactor Initial setup, LAN, FF, others

* First draft ready, many fixes and edits

* Ooops - minor edits and changes on initial setup

* Add change password guide (try 2).

* Remove change password menu item from guides

* Fix display bug, think different

---------

Co-authored-by: Lucy Cifferello <12953208+elvece@users.noreply.github.com>
Co-authored-by: gStart9 <george@start9labs.com>

site/source/guides/service-guides/bitcoin/bitcoin-cli.rst

@@ -0,0 +1,26 @@
+.. _bitcoin-cli:
+
+===========
+Bitcoin CLI
+===========
+
+ Instructions for accessing the bitcoind service in order to issue commands directly.
+ 
+ .. warning:: This is an advanced feature and should be used with caution. Start9 is not responsible for any damage you might cause through SSH access.
+ 
+ #. First, you will need SSH access.  Please see the :ref:`setup instructions <ssh>` for details.
+ #. Access your server and then you can interact with the bitcoind docker container using the following syntax:
+
+  .. code-block:: bash
+    
+      sudo docker exec -ti bitcoind.embassy bitcoin-cli COMMAND
+ 
+ .. tip:: For example ``sudo docker exec -ti bitcoind.embassy bitcoin-cli getnetworkinfo``
+ 
+ A list of possible commands can be found `here <https://developer.bitcoin.org/reference/rpc/>`__.
+ 
+ You can also drop into a shell using::
+ 
+    sudo docker exec -ti bitcoind.embassy bash
+
+ and then enter ``bitcoin-cli`` commands.  When you are finished, simply type ``exit``...