snapshots: include an updated time stamp

And reduce the amount of text on the page

snapshots/Makefile

@@ -15,6 +15,7 @@ index.html: _index.html $(MAINPARTS) files.gen
 
 files.gen: mkindex.pl curl-*
 	./mkindex.pl >$@
+	date -u "+%Y-%m-%d %H:%M %Z" > files-date.gen
 
 clean:
 	rm -f $(PAGES) *.gen

snapshots/_index.html

@@ -32,36 +32,26 @@
 <li><a href="https://github.com/curl/curl-for-win/actions/workflows/daily.yml">Windows, macOS, Linux MUSL/glibc</a>
 </ul>
 
-<div style="float: right; width: 50%; margin-left: 2em;">
+<div style="float: left; width: 50%; margin-left: 2em;">
 SUBTITLE(Source tarballs)
 <p>
 #include "files.gen"
 </div>
 
 SUBTITLE(Contents)
 <p>
- These snapshots are generated straight from git every euro morning. Snapshots
- are kept a few weeks before deleted.
+ <b>docs/RELEASE-TOOLS.md</b> in the snapshots shows the tooling needed to
+ reproduce the snapshot tarball. This is not necessarily the same set of
+ tools+versions as official curl releases use, because these snapshots are
+ generated automatically on a different host.
 
+<p> <b>docs/tarball-commit.txt</b> in the snapshots shows the commit hash that
+ was the HEAD at the time the tarball was made.
 <p>
- The <b>docs/RELEASE-TOOLS.md</b> document is bundled in every snapshot,
- showing the tooling needed to reproduce the snapshot tarball. This is not
- necessarily the same set of tools+versions as official curl releases use,
- because these snapshots are generated automatically on a different host.
-
-<p> Since August 2024, every snapshot contains a file named
- <b>docs/tarball-commit.txt</b> that contains the commit hash that was the
- HEAD at the time the tarball is made.
-
-SUBTITLE(Extensions)
-<p>
-<ul>
-<li> <b>tar.bz2</b> is the source tar archive bzip2 compressed
-<li> <b>zip</b> is the source archive zip compressed
-<li> <b>tar.xz</b> is the source tar archive xz compressed
-
-</ul>
-
+ Updated: <b>
+#include "files-date.gen" 
+ </b>
+
 #include "_footer.html"
 </body>
 </html>