From: Ferruccio Guidi <fguidi@maelstrom.helm.cs.unibo.it>
Date: Thu, 21 Nov 2019 23:12:52 +0000 (+0100)
Subject: web site update
X-Git-Tag: make_still_working~216
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=2ec8ae0a49716b205bbf63568ee625ec1e9eb524;hp=2ec8ae0a49716b205bbf63568ee625ec1e9eb524;p=helm.git

web site update

+ some links fixed
+ minor corrections
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