fix: some links to repo and mailing list

Author: bert-lange

zpu/docs/zpu_arch.html

@@ -139,7 +139,7 @@ <h2>Status</h2>
 
 <a name="download"/>
 <h2>Download source code</h2> 
-The ZPU HDL source code is available as a GIT repository from <a href="http://repo.or.cz/w/zpu.git" target="_blank">http://repo.or.cz/w/zpu.git</a>.
+The ZPU HDL source code is available as a GIT repository from <a href="https://github.com/zylin/zpu.git" target="_blank">https://github.com/zylin/zpu.git</a>.
 You can download the latest sourcecode as a snapshot without installing GIT.
 <p>
 Previously the ZPU repository was hosted as a CVS repository at www.opencores.org,
@@ -148,7 +148,7 @@ <h2>Download source code</h2>
 the GIT repository there.
 
 <p>
-The GCC ZPU toolchain is available from <a href ="http://repo.or.cz/w/zpugcc.git" target ="_blank">http://repo.or.cz/w/zpugcc.git</a>. The ZPU GCC toolchain is BIG (over 100 MBytes).
+The GCC ZPU toolchain is available from <a href ="https://github.com/zylin/zpugcc.git" target ="_blank">https://github.com/zylin/zpugcc.git</a>. The ZPU GCC toolchain is BIG (over 100 MBytes).
 <a name="patch"/>
 <h2>GIT</h2> 
 For more advanced use of GIT, you will need to hit the books and read up 
@@ -159,7 +159,8 @@ <h2>GIT</h2>
 w.r.t. finding reading material.
 <a name="mailinglist"/>
 <h2>Getting help - mailing list</h2> 
-<P>The place to get help is the <a href="http://www.zylin.com/mailinglist.html">zylin-zpu mailing list</a>
+<P>The place to get help is the <a href="https://groups.google.com/d/forum/zylin-zpu">zylin-zpu mailing list</a>
+<br>To join the list just send an email to <a href="mailto:[email protected]">[email protected]</a></p>
 
 <P>
 The ZPU is an open source project and if you demonstrate that you have