[llvm] [llvm][release] Add links to automatically built packages on release page (PR #147021)

[David Spickett via llvm-commits]

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@@ -45,9 +45,24 @@ def create_release(repo, release, tag=None, name=None, message=None):
         # Note that these lines are not length limited because if we do so, GitHub
         # assumes that should be how it is laid out on the page. We want GitHub to
         # do the reflowing for us instead.
+        #
+        # In the first section, only links to automatically built files are
+        # included because we know the links will become valid.
         message = dedent(
             """\
-LLVM {release} Release
+## LLVM {release} Release
+
+Note: Immediately after a release some of these links may not be valid yet.
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DavidSpickett wrote:

I think this is correct. As I understand it, the act of creating a release in GitHub triggers the building of those packages. So at first we just have a source archive, the builds appear later.

https://github.com/llvm/llvm-project/pull/147021