[geary] Document HTML signatures

[Robert Schroll <rschroll src gnome org>]

commit a624f29b06a310eb8103eac0d386b7f8198f1006
Author: Robert Schroll <rschroll gmail com>
Date:   Tue Jan 27 11:51:30 2015 -0500

    Document HTML signatures
    
    https://bugzilla.gnome.org/show_bug.cgi?id=743562

 help/C/accounts.page |   10 ++++++++++
 help/C/write.page    |    3 +++
 2 files changed, 13 insertions(+), 0 deletions(-)
---
diff --git a/help/C/accounts.page b/help/C/accounts.page
index b91230a..ea599d6 100644
--- a/help/C/accounts.page
+++ b/help/C/accounts.page
@@ -42,6 +42,16 @@
        For other accounts, if you disable this setting, you may be unable to view messages you've
        sent.</p></item>
        
+       <item><p>The <gui>Sign emails</gui> checkbox indicates whether a signature will be automatically
+       inserted when a composer is opened.  You may enter the signature into the box immediately
+       below.  You may use HTML tags to style the text.  Switch to a preview of the signature using the
+       buttons to the right.</p>
+       
+       <p>If you leave the signature in the Accounts dialog blank, Geary will use the
+       <file>.signature</file> file in your home directory, if it exists.  This file may contain either
+       plain text or HTML markup.  In the latter case, the markup will be inserted directly into the
+       composer, without any escaping.</p></item>
+       
        <item><p>The <gui>Download mail</gui> drop-down allows you to configure how much mail Geary will keep
        locally.  Geary can only use locally available mail when searching and forming
        conversations.</p></item>
diff --git a/help/C/write.page b/help/C/write.page
index bb83165..5adb591 100644
--- a/help/C/write.page
+++ b/help/C/write.page
@@ -34,6 +34,9 @@
        
        <p>A number of keyboard shortcuts are available in the composer; see <link 
xref="shortcuts#composer"/> for details.</p>
        
+       <p>You may specify a signature to be inserted into the composer in the <link xref="accounts" />
+       dialog.</p>
+       
        </section>
        <section>
        <title>Drafts</title>