[m-rev.] [www]: diff: announce the availability of 20.06 beta builds

[Julien Fischer]

Announce the availability of 20.06 beta builds.

news/newsdb.inc:
    As above.

Julien.

diff --git a/news/newsdb.inc b/news/newsdb.inc
index c6603eb..e363cff 100644
--- a/news/newsdb.inc
+++ b/news/newsdb.inc
@@ -25,6 +25,12 @@

  $newsdb = array(

+"2nd June 2020" => array(
+"20.06 beta release available",
+"Beta versions of the upcoming 20.06 release are available on the
+<a href=\"https://dl.mercurylang.org/index.html\">downloads page</a>.
+"),
+
  "3rd May 2020" => array(
  "Mercury 20.01.2 release",
  "Release Information is available