Added Dev mode/SSH details for Paper Pro (#76)

Co-authored-by: Nathaniel van Diepen <Eeems@users.noreply.github.com>
Co-authored-by: Nathaniel van Diepen <nathaniel.vandiepen@gmail.com>

src/guide/access/ssh.rst

@@ -3,6 +3,7 @@ SSH Access
 ==========
 
 :raw-html:`<div class="warning">⚠️ Make sure you write down your SSH password. ⚠️<br/>`
+
 If you don't write down your password and lose access to the UI, you will be unable to access your device. An :doc:`../../tech/recovery` will be required.
 
 It is also recommended to setup a `ssh-key`_ instead of using password authentication.
@@ -15,6 +16,11 @@ It is also recommended to setup a `ssh-key`_ instead of using password authentic
 Finding Your Device Password and IP Addresses
 =============================================
 
+:raw-html:`<div class="warning">⚠️ reMarkable Paper Pro requires Developer Mode ⚠️<br/>`
+
+Please reference :doc:`../../tech/developer-mode` for more information on how to enable it.
+:raw-html:`</div>`
+
 If your device version is 3.8 or lower
 --------------------------------------
 1. Connect your device to Wifi, or with a USB cable to your computer.
@@ -24,6 +30,8 @@ If your device version is 3.8 or lower
 5. Select "Copyright and licenses".
 6. You will find your password and the IP addresses you can use to access your device underneath the "GPLv3 Compliance" header.
 
+.. _ssh_info_3_9:
+
 If your device version is 3.9 or higher
 ---------------------------------------
 1. Connect your device to Wifi, or with a USB cable to your computer.
@@ -33,6 +41,7 @@ If your device version is 3.9 or higher
 5. Select "Copyright and licenses".
 6. You will find your password and the IP addresses you can use to access your device underneath the "GPLv3 Compliance" header.
 
+
 Connecting via SSH
 ==================
 

src/tech/developer-mode.rst

@@ -0,0 +1,23 @@
+==============
+Developer Mode
+==============
+
+:raw-html:`<div class="warning">⚠️ Enabling Developer Mode will require a factory reset. ⚠️<br/>`
+
+Make sure all files are synced to the cloud, or backed up via the :doc:`../../tech/usb-web-interface`
+:raw-html:`</div>`
+
+:raw-html:`<div class="warning">⚠️ Errors or defects caused by Developer Mode are not covered under warranty. ⚠️<br/>`
+
+https://support.remarkable.com/s/article/Limited-Warranty-Policy
+:raw-html:`</div>`
+
+The reMarkable Paper Pro requires enabling Developer Mode to enable :doc:`../guide/access/ssh`.
+
+You can leave Developer Mode by using :ref:`recovery_rmpp`.
+
+External Resources
+==================
+
+- Official Support Article
+   https://support.remarkable.com/s/article/Developer-mode

src/tech/recovery.rst

@@ -16,6 +16,8 @@ You can use `remarkable2-recovery <https://github.com/ddvk/remarkable2-recovery>
 
 This process requires building a custom pogo connector for the device, and to short the SBU1 and SBU2 pins of the USB-c connector. This is `detected on boot to put the device into recovery mode <https://github.com/reMarkable/uboot/blob/zero-sugar/board/reMarkable/zero-sugar/serial_download_trap.c>`_.
 
+.. _recovery_rmpp:
+
 reMarkable Paper Pro Recovery
 =============================