From: Ferruccio Guidi <ferruccio.guidi@unibo.it>
Date: Fri, 20 Dec 2019 17:44:34 +0000 (+0100)
Subject: web site update
X-Git-Tag: make_still_working~208
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=3f57ed2589601e79478c85d74708d8ebdec2cf20;hp=3f57ed2589601e79478c85d74708d8ebdec2cf20;p=helm.git

web site update

+ system and specification log completed
+ minor corrections
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