Update main README and release notes

README.md

@@ -2,7 +2,7 @@
 
 Download individual fonts from the download guides for [Noto Sans CJK](https://github.com/googlefonts/noto-cjk/tree/main/Sans#downloading-noto-sans-cjk) or [Noto Serif CJK](https://github.com/googlefonts/noto-cjk/tree/main/Serif#downloading-noto-serif-cjk) or look in [Releases](https://github.com/googlefonts/noto-cjk/releases)
 
-Version history is documented separately for [Sans](https://github.com/googlefonts/noto-cjk/blob/main/Sans/HISTORY.md#prior-release-notes) and [Serif](https://github.com/googlefonts/noto-cjk/blob/main/Serif/HISTORY.md#prior-release-notes)
+Release notes and version history are documented separately for [Sans](https://github.com/googlefonts/noto-cjk/blob/main/Sans/NEWS.md#noto-sans-cjk-release-notes) and [Serif](https://github.com/googlefonts/noto-cjk/blob/main/Serif/NEWS.md#noto-serif-cjk-release-notes)
 
 Noto CJK fonts are also available on [Google Fonts](https://fonts.google.com/noto/fonts) but under different names than in this repository:
 

Sans/NEWS.md

@@ -1,4 +1,6 @@
-### Noto Sans CJK 2.004 Release Notes
+## Noto Sans CJK Release Notes
+## 2.004
+
 April 28, 2021
 
 Release Date: April 28, 2021.
@@ -17,4 +19,4 @@ Update to 2.004
 
 Both Noto Sans CJK and Noto Serif CJK are licensed under the SIL Open Font License, Version 1.1.
 
-See HISTORY for prior release notes.
+See [HISTORY](HISTORY.md) for prior release notes.

Serif/NEWS.md

@@ -1,5 +1,5 @@
-Noto Serif CJK 2.001 Release Notes
-==================================
+## Noto Serif CJK Release Notes
+## 2.001
 
 January 26, 2022