Rename release notes for 3.0.0-rc to 3.0.0.rc (github#17510)

* Change -rc versions to .rc\d*

* Fix the download link

* Rename to 3.0.0.rc1

layouts/release-notes.html

@@ -50,7 +50,7 @@ <h2 class="border-bottom-0 m-0 p-0">
                       <span class="IssueLabel bg-orange text-white ml-3" style="white-space: pre">Release Candidate</span>
                     {% endif %}
 
-                    <a href="https://enterprise.github.com/releases/{{ patch.version | replace: '-rc', '' }}/download" class="ml-3 text-small text-bold">
+                    <a href="https://enterprise.github.com/releases/{{ patch.downloadVersion }}/download" class="ml-3 text-small text-bold">
                       Download
                     </a>
 

middleware/contextualizers/enterprise-release-notes.js

@@ -9,7 +9,15 @@ const enterpriseReleases = require('../../lib/enterprise-server-releases').suppo
  */
 function sortPatchKeys (release, version) {
   const keys = Object.keys(release)
-    .map(key => ({ version: `${version}.${key}`, patchVersion: key, ...release[key] }))
+    .map(key => {
+      const keyWithDots = key.replace(/-/g, '.')
+      return {
+        version: `${version}.${keyWithDots}`,
+        patchVersion: keyWithDots,
+        downloadVersion: `${version}.${keyWithDots.replace(/\.rc\d*$/, '')}`,
+        ...release[key]
+      }
+    })
   return keys
     .sort((a, b) => {
       if (semver.gt(a.version, b.version)) return -1