Fix raw encoding diagrams and descriptions.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>

protocol/protocol.tex

@@ -939,8 +939,9 @@ The raw encoding of a confidential address consists of:
 
 \begin{equation*}
 \begin{bytefield}[bitwidth=0.07em]{520}
-    \bitbox{48}{\changed{$\PaymentAddressLeadByte$}} &
-    \bitbox{256}{$\AuthPublic$ (32 bytes)} &
+\changed{
+    \bitbox{48}{$\PaymentAddressLeadByte$}
+  &}\bitbox{256}{$\AuthPublic$ (32 bytes)} &
     \bitbox{256}{A \changed{32-byte} encoding of $\TransmitPublic$}
 \end{bytefield}
 \end{equation*}
@@ -973,8 +974,9 @@ The raw encoding of a confidential address secret consists of, in order:
 
 \begin{equation*}
 \begin{bytefield}[bitwidth=0.07em]{520}
-    \bitbox{48}{\changed{$\SpendingKeyLeadByte$}} &
-    \bitbox{256}{$\AuthPrivate$ (32 bytes)} &
+\changed{
+    \bitbox{48}{$\SpendingKeyLeadByte$}
+  &}\bitbox{256}{$\AuthPrivate$ (32 bytes)} &
     \bitbox{256}{$\TransmitPrivate$ (32 bytes)}
 \end{bytefield}
 \end{equation*}
@@ -1037,9 +1039,11 @@ does not use it.
 The raw encoding of a \coinPlaintext consists of, in order:
 
 \begin{equation*}
-\begin{bytefield}[bitwidth=0.035em]{1224}
-    \bitbox{80}{\changed{$\TransmitPlaintextVersionByte$}} &
-    \bitbox{144}{$\Value$ (8 bytes)} &
+\begin{bytefield}[bitwidth=0.03em]{1480}
+\changed{
+    \bitbox{88}{$\TransmitPlaintextVersionByte$}&
+    \bitbox{256}{$\AuthPublic$ (32 bytes)}
+  &}\bitbox{168}{$\Value$ (8 bytes)} &
     \bitbox{256}{$\CoinAddressRand$ (32 bytes)} &
     \bitbox{384}{$\CoinCommitRand$ (48 bytes)} &
     \changed{\bitbox{512}{$\Memo$ (64 bytes)}}
@@ -1050,6 +1054,7 @@ The raw encoding of a \coinPlaintext consists of, in order:
 \changed{
     \item A byte $\TransmitPlaintextVersionByte$ indicating this version of the raw 
 encoding of a \coinPlaintext.
+    \item 32 bytes specifying the \authKeypair public key of the recipient.
 }
     \item 8 bytes specifying a big-endian encoding of $\Value$.
     \item 32 bytes specifying $\CoinAddressRand$.