[extensions-web] about.html: Add paragraph about proxy settings and configuration

[Jasper St. Pierre <jstpierre src gnome org>]

commit b174a9a304d6131874c44bef1968d0a1ed8cd334
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Dec 12 14:00:04 2011 -0500

    about.html: Add paragraph about proxy settings and configuration

 .../extensions/templates/extensions/about.html     |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/sweettooth/extensions/templates/extensions/about.html b/sweettooth/extensions/templates/extensions/about.html
index 19cd8c1..c8e84e7 100644
--- a/sweettooth/extensions/templates/extensions/about.html
+++ b/sweettooth/extensions/templates/extensions/about.html
@@ -66,6 +66,12 @@ Shell Integration" plugin is installed and enabled in your browser
 preferences.
 </p>
 <p>
+If you are behind a proxy, make sure you have configured your proxy in
+both your browser's configuration dialog as well as GNOME's Network panel
+under System Settings. GNOME Shell Extensions needs both settings panels
+configured for the one-click installation to work.
+</p>
+<p>
 Note: there were some bugs in the browser plugin shipped in GNOME 3.2
 that prevent it from working properly under WebKit-based browsers like
 Epiphany and Chromium. These bugs have been fixed and should be