release: 3.0.1

Bump the workspace to 3.0.1 and bring the user guide up to date: an RDP
chapter, shell integration and inline images, SSH certificates and CAs,
known_hosts import/export, stored credentials and master password change,
profile sync (replacing the Alchementary Link migration chapter), the
Diagnostics tab and log, and refreshed screenshots throughout. The welcome
screen's protocol line now lists RDP.

docs/guide/chapters/part1-start.tex

@@ -40,10 +40,9 @@ The first time you open Nexus Terminal you get a calm, empty welcome screen. Thr
 
 \shot{welcome.png}{The welcome screen. Your saved connections will live down the left; here there are a few already.}
 
-\begin{headsup}[Coming from Alchementary Link?]
-Nexus Terminal spots your old data on first run and copies your profiles, vault and recordings across
-automatically. You'll see a little toast saying so. Your old data is left exactly where it was.
-The details are in \hyperref[ch:move]{Moving house} on p.\,\pageref{ch:move}.
+\begin{headsup}[Got more than one computer?]
+Point \ui{Profile sync} at a shared folder and your connections follow you around. See
+\hyperref[ch:move]{Moving house} on p.\,\pageref{ch:move}.
 \end{headsup}
 
 \section{Make your first connection}
@@ -51,7 +50,7 @@ The details are in \hyperref[ch:move]{Moving house} on p.\,\pageref{ch:move}.
 \begin{enumerate}
   \item Click \ui{New Connection}, or press \keys{\mod+N}.
   \item Pick the protocol along the top: \proto[teal]{SSH}, \proto[amber]{Telnet}, \proto[violet]{RAW TCP},
-        \proto[slate]{GitHub}, \proto[rose]{VNC}, \proto[amber]{IRC} or \proto[accent]{Serial}.
+        \proto[slate]{GitHub}, \proto[rose]{VNC}, \proto[rose]{RDP}, \proto[amber]{IRC} or \proto[accent]{Serial}.
   \item Fill in the \ui{General} bit: a \ui{Display Name} you'll recognise, the \ui{Host}, the \ui{Port}
         and your \ui{Username}.
   \item Click \ui{Create \& Connect}.