Renaming R2 changelog to release notes. (#20717)

Author: Oxyjun

public/_redirects

@@ -1295,8 +1295,9 @@
 /r2/examples/boto3/ /r2/examples/aws/boto3/ 301
 /r2/buckets/data-location/ /r2/reference/data-location/ 301
 /r2/reference/audit-logs/ /r2/platform/audit-logs/ 301
-/r2/reference/changelog/ /r2/platform/changelog/ 301
-/r2/reference/changelog/index.xml /r2/platform/changelog/index.xml 301
+/r2/reference/changelog/ /r2/platform/release-notes/ 301
+/r2/reference/changelog/index.xml /r2/platform/release-notes/index.xml 301
+/r2/platform/changelog/ /r2/platform/release-notes 301
 /r2/reference/limits/ /r2/platform/limits/ 301
 /r2/reference/metrics-analytics/ /r2/platform/metrics-analytics/ 301
 /r2/examples/mastodon/ /r2/tutorials/mastodon/ 301

src/content/docs/r2/platform/changelog.mdx renamed to src/content/docs/r2/platform/release-notes.mdx

@@ -1,6 +1,6 @@
 ---
 pcx_content_type: changelog
-title: Changelog
+title: Release-notes
 release_notes_file_name:
   - r2
 ---

src/content/release-notes/r2.yaml

@@ -1,5 +1,5 @@
 ---
-link: "/r2/platform/changelog/"
+link: "/r2/platform/release-notes/"
 productName: R2
 productLink: "/r2/"
 productArea: Developer platform