Insert URLs for finding Wireshark's dependencies in README.bsd

Change-Id: Idb49181672b83eb4c074409f5b7487cce054833f
Reviewed-on: https://code.wireshark.org/review/6029
Reviewed-by: Stephen Fisher <sfisher@sdf.org>

README.bsd

@@ -12,20 +12,36 @@ Installing Wireshark on FreeBSD/OpenBSD/NetBSD/DragonFly BSD
 Wireshark requires a number of additional programs to function.
 Install the latest versions of the following programs before compiling:
 
-    glib (version 2.16.0 or later)
-    gtk2 (version 2.12.0 or later) or gtk3 or Qt
-    pkgconfig
-    python (version 2.x or 3.x)
+The easiest way to install these is by using your operating system's
+ports or packages system.  If you prefer to build from source, the programs
+can be found at the following sites:
+
+    glib 2.16 or later:
+         ftp.gnome.org:/pub/gnome/sources/glib/
+	 http://ftp.gnome.org/pub/gnome/sources/glib/
+
+    pkgconfig:
+         http://pkgconfig.freedesktop.org/releases/
+
+    python 2.5 or later:
+         https://www.python.org/downloads/source/
+
+If you want to use the Wireshark GUI, install one or both of these toolkits:
+
+   gtk+ 2.12 or later:
+         ftp.gnome.org:/pub/gnome/sources/gtk+/
+	 http://ftp.gnome.org/pub/gnome/sources/gtk+/
+
+    Qt 4.6 or later:
+	 http://download.qt-project.org/official_releases/qt/
+
 
 (These programs may require additional dependencies)
 
 Additional programs can be used to enhance Wireshark's functionality.
 These can be found by typing ./configure --help or looking at the output
 at the end of running the configure script.
 
-The easiest way to install these is by using your operating system's
-ports or packages system.
-
 
 2. Compiling Wireshark
 -----------------------