[COMMITTED] Add bzip2-test to downloads.

[Mark Wielaard]

Explain how to get the bzip2 test suite.

---
 downloads.html | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/downloads.html b/downloads.html
index bab004d..deef6c2 100644
--- a/downloads.html
+++ b/downloads.html
@@ -32,7 +32,7 @@
 
 <h1>Downloads</h1>
 
-<h2>Classic bzip2 1.0.x</h2>
+<h3>Classic bzip2 1.0.x</h3>
 
 <p>Here is the <a href="/pub/bzip2/bzip2-latest.tar.gz">latest bzip2 1.0.x
 source tarball</a> release, which includes full documentation.</p>
@@ -45,7 +45,14 @@ or
 <p>The bzip2 1.0.x <a href="https://sourceware.org/git/?p=bzip2.git;a=summary">git tree</a> can be checked out with:</p>
 <p><div><tt>git clone git://sourceware.org/git/bzip2.git</tt></div><p>
 
-<h2>Modern bzip2 1.1.x</h2>
+<h3>bzip2 test suite</h3>
+
+<p>The bzip2 test suite is maintained in a seperate repository and contains
+test files from various bzip2 implementations to check compatibility. It can
+be checked out with:</p>
+<p><div><tt>git clone git://sourceware.org/git/bzip2-tests.git</tt></div><p>
+
+<h3>Modern bzip2 1.1.x</h3>
 <p>There is also a future <a href="https://gitlab.com/federicomenaquintero/bzip2">bzip2 1.1.x development branch</a> which includes a new build system and more fixes.</p>
 
 <p>If you can be bothered, please 
-- 
1.8.3.1