update README

- Remove the unnecessary references to tarballs since this is now a
  standard github project.

- Point people to the bug tracker for filing bugs.

README

@@ -41,19 +41,6 @@ Espeakup currently accepts the following command line options:
   --help, -h				Show this help.
   --version, -v				Display the software version.
 
-Getting the Latest Version
-==========================
-
-It is possible to download a tarball from github of any released version
-as follows:
-
-wget http://www.github.com/williamh/espeakup/tarball/vx.y
-
-If you need a tarball for packaging purposes, one is available from
-ftp://ftp.linux-speakup.org/pub/linux/goodies/espeakup-x.y.tar.bz2.
-
-The url for the git repository is git://github.com/williamh/espeakup.git.
-
 Acknowledgements
 ================
 
@@ -62,9 +49,9 @@ TTSynth connector, on which this work is based.  Also, I would like
 to thank Kirk Reiser and Jonathan Duddington, the
 authors of Speakup and Espeak, respectively, for their work.
 
-Questions
-=========
+Filing Bugs
+====
+
+Bugs should be filed on our bug tracker at
+https://github.com/linux-speakup/issues.
 
-You can contact me with questions, bugs, patches, etc, at
-w.d.hubbs@gmail.com or on the speakup mailing list.  I hope you find
-this software to be useful.